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# help with rearrange the equation to make g the subject watch

1. Hi,

So I'm looking to rearrange the equation to make g the subject:

2x= (g/g-2) -5

I don't know how to work this out, can anyone help?
2. (Original post by Drax101)
Hi,

So I'm looking to rearrange the equation to make g the subject:

2x= g -5 g-2

I don't know how to work this out, can anyone help?
What is between the 5 and second g?
3. (Original post by Drax101)
Hi,

So I'm looking to rearrange the equation to make g the subject:

2x= g -5 g-2

I don't know how to work this out, can anyone help?
What have you tried so far? Please post your working.
4. If you need a nudge to start off, try getting all the g terms on one side and everything else on the other.

Then get everything on one line (no fractions).
5. Ok here is my solution:

g/g-2 = -2
2x-5= 5-2=3x

As stated, no idea. I appreciate your guidance.
6. (Original post by Drax101)
Ok here is my solution:

g/g-2 = -2
Not sure where you're getting this from...

Try this:

Then multiply both sides by , expand and then move all terms back to the left, factorise and then divide.
7. (Original post by Drax101)
Ok here is my solution:

g/g-2 = -2
2x-5= 5-2=3x

As stated, no idea. I appreciate your guidance.
How did you get two equations when you start with one? What is your working here?

Try adding 5 to each side of the equation to begin.
8. g=(4x+10)/(2x+4)
This is what I ended up with

Posted from TSR Mobile
9. (Original post by H.b9)
g=(4x+10)/(2x+4)
This is what I ended up with

Posted from TSR Mobile
Correct, but you can simplify by dividing numerator and denominator by 2.
10. (Original post by chazwomaq)
Correct, but you can simplify by dividing numerator and denominator by 2.
Not the OP.
11. (Original post by Zacken)
Not the OP.
Sure, still almost correct though! Hopefully the OP isn't still puzzling her way through the question.
12. (Original post by Drax101)
Hi,

So I'm looking to rearrange the equation to make g the subject:

2x= (g/g-2) -5

I don't know how to work this out, can anyone help?
g/g-2 = 2x+5 -> g=(2x+5)(g-2)=2xg-4x+5g-10
Thus (2x+5-1)g=4x+10 -> g = (4x+10)/(2x+4)=(2x+5)/(x+2)

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