Question

2(×+5)-3(5-×)=5 e,?

A)2
B)10
C)-2
D)-10
?

Answer 1

$2(x + 5) - 3(5 - x) = 5 \\ 2x + 10 - 15 + 3x = 5 \\ 2x + 3x = 5- 10 + 15 \\ 5x = 10 \\ x = \frac{10}{5} \\ x = 2$

Alternativa A).