Question

-2x - 8y = - 60 2x+y=-45 solve for y

Answer 1

9514 1404 393

Answer:

y = 15

Explanation:

The coefficients of x are opposites in the two equations, so adding the equations will eliminate x.

(-2x -8y) +(2x +y) = (-60) +(-45)

-7y = -105 . . . . . simplify

y = 15 . . . . . divide by -7

___

x = -30