Question

D)2x-4-8=4x
E)3x=x+1+7
F)360+36×=30x

Answer 1

Resposta:

d) X = -6

e) X = 4

f) X = -60

Explicação passo-a-passo:

d)

$2x - 4 - 8 = 4x \\ 4x - 2x = - 4 - 8 \\ 2x = - 12 \\ x = - 6$

e)

$3x = x + 1 + 7 \\ 3x - x = 1 + 7 \\ 2x = 8 \\ x = 4$

f)

$360 + 36x = 30x \\ 36x - 30x = - 360 \\ 6x = - 360 \\ x = - 6$