Question

Resolva as seguintes equações a)2x-6=4 b)12+3x=-6 c)18m-40=22m​

Answer 1

Resposta:

Explicação passo a passo:

a)

$2x - 6 = 4\\2x = 4 + 6\\2x = 10\\x = \frac{10}{2} \\x = 5$

b)

$12 +3x = -6\\3x = -6-12\\3x=-18\\x = \frac{-18}{3} \\x = -6$

c)

$18m-40 = 22m\\18m-22m = 40\\-4m=40\\m = \frac{40}{-4} \\m=-10$