Question

Na proporção 2-1/2.3/5=x/4:3+1,o valor de x é?

Answer 1

$2- \frac{1}{2}* \frac{3}{5}= \frac{x}{ \frac{4}{3} } +1 ==\ \textgreater \ 2- \frac{3}{10}= \frac{3x}{ 4} +1 ==\ \textgreater \ \\ \\ mmc(4,10)=20 \\ \\ \frac{20*2-2*3}{20} = \frac{5*3x+20}{20} ==\ \textgreater \ 40-6=15x+20==\ \textgreater \ \\ \\ 15x=34-20 ==\ \textgreater \ 15x=14 \\ \\ x= \frac{14}{15}$