Question

Galera como resolvem esses aki

Answer 1

$a) \frac{2}{x+1} = \frac{1}{5} \\ \\ (x+1)*1=2*5 \\ x+1=10 \\ x=10-1 \\ \boxed{x=9} \\ \\ b) \frac{5}{x-3}= \frac{2}{8} \\ \\ 2*(x-3)=5*8 \\ 2x-6=40 \\ 2x=40+6 \\ 2x=46 \\ x= \frac{46}{2} \\ \boxed{x=23}$