Madie.may
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#1
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Ummm idk how this work but would you be able to help me rearrange a formular to make x the subject
Y=x-5
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Plücker
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#2
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(Original post by Madie.may)
Ummm idk how this work but would you be able to help me rearrange a formular to make x the subject
Y=x-5
Yes. What do you get if you add 5 to both sides?
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ShyAutumnFox
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(Original post by Plücker)
Yes. What do you get if you add 5 to both sides?
5Y = X ? I’m really not good with maths, but I’m curious
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SAARH.A5
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(Original post by ShyAutumnFox)
5Y = X ? I’m really not good with maths, but I’m curious
No, that isn't correct. You need to add 5 to both sides.
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Moonbow
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(Original post by ShyAutumnFox)
5Y = X ? I’m really not good with maths, but I’m curious
You’ve got the 5 slightly muddled there. You’re going to need to add it not multiply like SAARH.A5 says. Don’t worry! It’s nothing to worry about
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ShyAutumnFox
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(Original post by SAARH.A5)
No, that isn't correct. You need to add 5 to both sides.
Hmmm... buy Y is just Y, so Y+5 yes? Isn’t that just 5Y? And then you have X-5, so you add 5 to -5? Oh wait isn’t that -10 because - + - = + but - + + = - right? Sooo... 5Y = X-10 or Y5 = X-10
I’m confused...
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RaA64
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The opposite of subtract is addition
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RaA64
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So as you have y = x - 5.

The operation on the right is SUBTRACT. The opposite of SUBTRACT is ADD.

Therefore, the -5 goes onto the other side and becomes +5
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ShyAutumnFox
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#9
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(Original post by Moonbow)
You’ve got the 5 slightly muddled there. You’re going to need to add it not multiply like SAARH.A5 says. Don’t worry! It’s nothing to worry about
Wait so 5Y is multiplying it?
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ShyAutumnFox
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(Original post by RaA64)
So as you have y = x - 5.

The operation on the right is SUBTRACT. The opposite of SUBTRACT is ADD.

Therefore, the -5 goes onto the other side and becomes +5
Other side? So to the other side of X or to the Y?
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SAARH.A5
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(Original post by ShyAutumnFox)
Hmmm... buy Y is just Y, so Y+5 yes? Isn’t that just 5Y? And then you have X-5, so you add 5 to -5? Oh wait isn’t that -10 because - + - = + but - + + = - right? Sooo... 5Y = X-10 or Y5 = X-10
I’m confused...
Y + 5 and 5Y aren't the same thing. Why are you multiplying the Y by 5? You just need to do y + 5 to make x the subject in this case.
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RaA64
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To the other
(Original post by ShyAutumnFox)
Other side? So to the other side of X or to the Y?
To the other side of the equals sign
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ShyAutumnFox
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(Original post by SAARH.A5)
Y + 5 and 5Y aren't the same thing. Why are you multiplying the Y by 5? You just need to do y + 5 to make x the subject in this case.
I’m sorry, I struggle with maths a lot, I have dyscalculia (basically dyslexic but numbers) it makes a bit more sense now yes I thought the same thing but I guess it’s a different thing if you have 5 x let’s say y = 2 so 5 x 2 or 2 + 5...

So if I have Y = X-5 I have to make it a +5 to get X but then I have to add the +5 to the Y yes? So, not multiplication but addition so it’s a Y+5...? So I have the entire thing to

Y+5 = X.......?
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ShyAutumnFox
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(Original post by RaA64)
To the other

To the other side of the equals sign
Ok
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RaA64
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(Original post by ShyAutumnFox)
I’m sorry, I struggle with maths a lot, I have dyscalculia (basically dyslexic but numbers) it makes a bit more sense now yes I thought the same thing but I guess it’s a different thing if you have 5 x let’s say y = 2 so 5 x 2 or 2 + 5...

So if I have Y = X-5 I have to make it a +5 to get X but then I have to add the +5 to the Y yes? So, not multiplication but addition so it’s a Y+5...? So I have the entire thing to

Y+5 = X.......?
Yes you’re correct
(Original post by ShyAutumnFox)
I’m sorry, I struggle with maths a lot, I have dyscalculia (basically dyslexic but numbers) it makes a bit more sense now yes I thought the same thing but I guess it’s a different thing if you have 5 x let’s say y = 2 so 5 x 2 or 2 + 5...

So if I have Y = X-5 I have to make it a +5 to get X but then I have to add the +5 to the Y yes? So, not multiplication but addition so it’s a Y+5...? So I have the entire thing to

Y+5 = X.......?
Yes you’re correct
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SAARH.A5
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(Original post by ShyAutumnFox)
I’m sorry, I struggle with maths a lot, I have dyscalculia (basically dyslexic but numbers) it makes a bit more sense now yes I thought the same thing but I guess it’s a different thing if you have 5 x let’s say y = 2 so 5 x 2 or 2 + 5...

So if I have Y = X-5 I have to make it a +5 to get X but then I have to add the +5 to the Y yes? So, not multiplication but addition so it’s a Y+5...? So I have the entire thing to

Y+5 = X.......?
Yes, it is addition in this case. x = y + 5 is correct.
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ShyAutumnFox
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(Original post by SAARH.A5)
Yes, it is addition in this case. x = y + 5 is correct.
Wait... why is the X suddenly at the front?!
Also, I managed! Even though this wasn’t even my post thank you so much for all the help!
Last edited by ShyAutumnFox; 3 weeks ago
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ShyAutumnFox
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(Original post by RaA64)
Yes you’re correct

Yes you’re correct
Oh I actually did it! Even though this wasn’t even my post thank you so much for all the help!
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SAARH.A5
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#19
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(Original post by ShyAutumnFox)
Wait... why is the X suddenly at the front?!
You could write it as x = Y + 5 or Y + 5 = x. Your answer is correct.
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ShyAutumnFox
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(Original post by SAARH.A5)
You could write it as x = Y + 5 or Y + 5 = x. Your answer is correct.
Ohhh ok, thank you so much for your patience and help! Really really appreciate it!
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