Question

resolva as equacoes abaixo a) 7x-30=13x-40+10

b)5.(x-3)=3+4.(x-6)​

Answer 1

Explicação passo-a-passo:

$a)7x - 30 = 13x - 40 + 10$

$7x - 13x = - 40 + 10 + 30$

$- 6x = 0 \\ x = \frac{0}{6} = 0$

$b)5.(x - 3) = 3 + 4(x - 6)$

$5x - 15 = 3 + 4x - 24$

$5x - 4x = - 24 + 3 + 15 \\ x = - 6$