Question

$\frac{3}{7} x = \frac{20}{7} - x$
Solve it please by explaining​

Answer 1

Answer:

$\frac{3}{7} x = \frac{20}{7} - x \\ \\ = \frac{3x}{7} = \frac{20 - 7x}{7} \\ \\ = 7(20 - 7x) = 7(3x) \\ \\ = 140 - 49x = 21x \\ \\ = 140 = 21x + 49x \\ \\ = 140 = 70x \\ \\ = x = \frac{140}{70} \\ \\ = x = 2$