Question

Решите Уравнение
(2.4-1,2х) * 7/9=(3.6-5х):15/2
РЕШИТЕ УРАВНЕНИЕ.(

Answer 1

$(2,4-1,2x)* \frac{7}{9}=(3,6-5x): \frac{15}{2}\\\\(2,4-1,2x)* \frac{7}{9}=(3,6-5x)* \frac{2}{15}|*45\\\\(2,4-1,2x)*35=(3,6-5x)*6\\\\84-42x=21,6-30x\\\\42x-30x=84-21,6\\\\12x=62.4\\\\x=62,4:12\\\\x=5,2$