Question

решите уравнение 2/3×(5х-7)=1​

Answer 1

$\frac{2}{3}*(5x-7)=1$

$3*\frac{2}{3}*(5x-7)=3*1$

$2*(5x-7)=3$

$10x-14=3$

$10x=14+3$

$x=17:10$

$x=1,7$

Ответ: 1,7