Resposta:
[tex]2( x - 5) = 7 \ \ \\ 2 x- 10 =7 \\ \\ 2x - 10 + 10 = 7 + 10 \\ \\ 2x = 17 \\ \\ \frac{2x}{2} = \frac{17}{2} \\ \\ x = \frac{17}{2} [/tex]
