Question

X-3/2 = 2X/7 решите уравнение

Answer 1

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