Question

$\frac{x}{5} + \frac{ x}{2} = 21$
ajuda ai prf​

Answer 1

olá !!!

= 30

$\frac{x}{5}+\frac{x}{2} = 21 \\\\10(\frac{x}{2}+\frac{x}{2})=10.21 \\\\10.\frac{x}{2}+10.\frac{x}{2} =10.21\\\\2+5=10.21\\\\7x=210\\\\x=\frac{210}{7} \\\\x=30$

espero ter ajudado

Att: Jovem Lendário