Question

Só a questão 51 e 52
Por favor

Answer 1

51) $\frac{5x}{4}$- 8= 12
$\frac{5x}{4} -\frac{8}{1}= \frac{12}{1}$
$\frac{5x}{4}- \frac{32}{4}= \frac{48}{4}$
$5x- 32= 48$
$5x= 48+ 32$
$5x= 80$
$x= \frac{80}{5}$
$x= 16$

52)$6x+ 6x+ x+ x= 120$
$8x= 120$
$x= \frac{120}{8}$
$x= 15$