Question

Resolvendo a equação de 3+×/5=6+x/2

Answer 1

$\LARGE\tt{}3 + \dfrac{x}{5} = 6 + \dfrac{x}{2} \\ \\ \LARGE\tt{}30 + 2x = 60 + 5x \\ \LARGE\tt{}30 + 2x - 5x = 60 \\ \LARGE\tt{}2x - 5x = 60 - 30 \\ \LARGE\tt{} - 3x = 60 - 30 \\ \LARGE\tt{} - 3x = 30 \\ \LARGE\tt{}x = \dfrac{ - 3}{30} \\ \\ \LARGE\tt{}x = - 10$

Então concluímos que:

$\LARGE\tt{}\left(Alternativa \: B\right)$