Question

afla numarul x stiind ca 3supra7*x-40

Answer 1

$\frac{3}{7}$ · x= 40
x= 40: $\frac{3}{7}$= $\frac{40}{1}$ : $\frac{3}{7}$
x=$\frac{40}{1}$ ·$\frac{7}{3}$
x=$\frac{280}{3}$