Question

What is the value of x in the following equation (2y+x)+(2y+x)=(-2y+x)+(2x-15)

Answer 1

(2y + x) + (2y + x) = (-2y + x) + (2x - 15)

2y + x + 2y + x = -2y + x + 2x - 15

4y + 2x = -2y + 3x - 15
+2y        + 2y 

6y + 2x = 3x - 15
       -2x   -2x

6y = x - 15
+15     +15

15 + 6y = x