Respuesta :

Answer:

x=2

Step-by-step explanation:

Answer:

x = 2

Step-by-step explanation:

(10 + 2x + x = - x + 18)

10 + 2x + x = - x + 18

10 + 3x = - x + 18

10 + 3x + x = - x + x + 18

10 + 4x = 18

10 - 10 = 4x = 18 - 10

4x = 8

4x ÷ 4 = 8 ÷ 4

x = 2