Question

решить уравнение 4-7х15 + 1 - х3 = 4 - 2х + 15

Answer 1

4 - 7х/15 + 1 - х/3 = 4 -2х + 1/5
-7х/15 - 5х/15 + 2х = 4 + 1/5 - 4 - 1
1.3/15х = -4/5
х=-4/5:(1.1/5) = -4/5*5/6 = -2/3