Question

2x +3x + 9 = 8 (6 -x)

Answer 1

Olá,

2x + 3x + 9 = 8(6-x)
5x + 9 = 48 - 8x
5x + 8x = 48-9
13x = 39
13x/13 = 39/13
x = 3

Answer 2

2x+3x+9 = 8(6-x)
5x+9 = 48-8x
5x+8x= 48-9
13x= 39
x= 39/13
[x= 3]

Espero ter ajudado!!!