Question

a) 4.(5 - x)= 3. (- 4 - 2x)

b) 2. (x-4)= 3 . (x + 1) - 10

Answer 1

Resposta:

a) -16

b) -1/2

Explicação passo-a-passo:

A) 20 -4x = -12- 6x

-4x +6x = -12 -20

2x = -32

x = -16

B) 2x -8 = -12 -6x

2x + 6x = -12 +8

8x = -4

x= -1/2