Question

me ajudem pfv
$\times \div 3 - \times \div 5$
me ajudem ​

Answer 1

$mmc \: (3,5) = 15 \\ \frac{x}{3} - \frac{x}{5} = 20 \\ \: \: 5x - 3x = 20 \: \\ 2x = 300 \\ x = \frac{300}{2} \\ x = \pink{150}$

Comprovando:

$\frac{150}{3} - \frac{150}{5} = x \\ 50 - 30 = x \\ 20 = x \\ x = 20$