Question

how do u solve y=2x+5 and y=-x+2

Answer 1

Are those as a simultaneous equation? Or separate?

Answer 2

"and" has a precise mathematical term .. so the solution set is the point of intersection of the lines

Answer 3

since y = y, just equate them and solve for x

once you know x, either equation will give you y

Answer 4

So its simultaneous then? Got a bit confused there.

Answer 5

Ok so since both of the equations have y= in front of them, u can just equal them 2 each other like:
2x+5=-x+2 [and now we solve, add x to both sides to get:]
3x+5=2 [Subtract 5 on both sides 2 get:]
3x=-3 [Divide both sides by 3]
x=-1