Question

A) x = 2
B) x = 4
C) x = 8
D) x = 16

Answer 1

Resposta:

Olá boa noite!

$\frac{4+x}{x+7} =\frac{2}{3} \\\\3(4+x) = 2(x + 7)\\\\12 + 3x = 2x + 14\\\\3x - 2x = 14 + 12\\\\x = 16$

Resposta letra D