Question

b)-30 +6x = +70 -4x
c)8X-40 = +4x +160​

Answer 1

Resposta:

Olá!!!

$a) - 30 + 6x = + 70 - 4x \\ 6x + 4x = 30 + 70 \\ 10 x = 100 \\ x = 100 \div 10 \\ x = 10$

$b)8x - 40 = + 4x + 160 \\ 8x - 4x = 160 + 40 \\ 4x = 200 \\ x = 200 \div 40 \\ x = 5$

ATT:MIRANDA ;)

Answer 2

Resposta:

-10 e -50

Explicação passo-a-passo: