Question

I need help/explanantion in solving these problems using elimination?

1) 4x+y= -23
x-2y= -17

2) 4x+3y=-1
2x+5y=3

Answer 1

first you need to make 2 of the varilbles oppisit inverses

Answer 2

Combine the upper and lower function

Answer 3

Solve for the varible

Answer 4

? How would I go about doing that?

Answer 5

? How would I go about doing that?

Answer 6

ok for the first one i would multiply the top function by 2 giving you a positive 2y and a -2y, after we have done that you are going to combine the top and bottom function resulting in the 'y' varrible canceling out

Answer 7

the function that remains is going to be 5x=-40. when we solve for x we get -8