Question

X-3/2 = 2X/7 решите уравнение

Answer 1

$x-dfrac{3}{2} = dfrac{2}{7} x\ \ x-dfrac{2}{7} x = dfrac{3}{2} \ \ dfrac{5}{7} x= dfrac{3}{2} \ \ x=dfrac{3*7}{2*5} =dfrac{21}{10}= 2.1$