Respuesta :

Answer:

x = 34

Step-by-step explanation:

3(x+6)-x=86

3x+18-x =86

2x+18 =86

2x =68

x=34
(3x+18)-x=86
2x+18=86
subtract 18 from both sides you get
2x=68
divide both sides by 2
x = 34