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# Simultaneous equations using subs watch

1. Y=8x+10
y= -2x+5
2. (Original post by stephielola)
Y=8x+10
y= -2x+5
3. Find x and y
4. (Original post by stephielola)
Find x and y
I don't want to :/

Just subtract one from the other and solve for the one variable.

Or equate them to each other - that's what the substituting is for.
5. (Original post by stephielola)
Y=8x+10
y= -2x+5
As both sides are equal to y, you can make them equal to each other i.e
8X+10=-2X+5 then just take it from there.
remember to substitute x back into the original equation
6. (Original post by CODjoe13;68[url="http://www.thestudentroom.co.uk/forumdisplay.php?f=51")
Maths, science and technology academic help[/url]480898]As both sides are equal to y, you can make them equal to each other i.e
8X+10=-2X+5 then just take it from there.
remember to substitute x back into the original equation
I can get to that point and then I get confused, can I get more help

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