Question

Resolva as equações de 1° grau
Me ajuda pfvr

Answer 1

$\frac{3 - x}{5x} = \frac{1}{2} \\ 3 - x = 5 x \times \frac{1}{2} \\ 3 - x = \frac{5x}{2} \\ (3 - x) \times 2 = 5x \\ -2x - 5x = - 6 \\ - 7x = - 6 ( - 1)\\ x = \frac{6}{7}$