Question

Resolva as equações:

2x
———=1
X+4

Answer 1

$\frac{2x}{x + 4} = 1 \\ \frac{2x}{x + 4} = 1 \: x≠ - 4 \\ 2x = x + 4 \\ 2x - x = 4 \\ x = 4 \: x≠ - 4 \\ x = 4$