Respuesta :

8)
3x + 2 = 4x - 3
4x - 3x = 2 +3
x = 5

2y +7 = 4y - 9
4y - 2y = 7+9
2y = 16
y = 2

9)

2x - 2 = x + 2
2x - x = 2+2
x =4

5y - 8 = y+24
5y - y = 24 +8
4y = 32
y = 8
x = 5
y = 8

Work: Simplify both sides of the equation then isolate the variable.