Question

*MEDAL*

Can somebody please help me solve this?

Answer 1

I think however @AllTehMaffs is what you're supposed to do for this type of formula is first solve the top, then plug in y (or x, which ever one you went to figure out) and plug it into the second equation...would it still work if I start with the bottom before the top?

Answer 2

From the second equation, solve for y, we get y = 2x + 5.

Now substitute y = 2x + 5 into the first equation wherever we see y.

So the first equation becomes - 2x = 2(2x + 5) - 4
so - 2x = 4x + 10 - 4
- 2x = 4x + 6
x = - 1

Now since x = - 1, substitute x = -1 into one of the original equations to find y.

Take the first equation, if x = -1, -2 = 2y - 4
2y = 2
y = 1

So the final answer is x = - 1 and y = 1.
HTH.

Answer 3

Thanks, @Easyaspi314 :)

Answer 4

welcome.

Answer 5

uuh, @Easyaspi314 ...I think you got the first part right but I don't have any choices for y = 1. Here's my choices that go along with x = -1.

Answer 6

Oh, i found it. Here's what you did wrong.

Answer 7

you didn't insert x for -2x = 2y - 4. it should look like this:

-2(-1) = 2y - 4
2 = 2y - 4
6 = 2y
y = 3