Question

Complete the solution of the equation. Find the

value of y when x equals 24.
-2x + 2y = -56

Answer 1

For x = 24, y = -4.

Explanation:

`Put\ x=24\ to\ the\ equation\ -2x+2y=-56,\ and\ solve\ it\ for\ y:\\\\-2(24)+2y=-56\\\\-48+2y=-56\qquad\text{add 48 to both sides}\\\\-48+48+2y=-56+48\\\\2y=-8\qquad\text{divide both sides by 2}\\\\(2y)/(2)=(-8)/(2)\\\\y=-4`