Question

при каких значениях х верно равенство (5-3)х=5х-3•2

Answer 1

(5-3)х = 5х-3*2
2х = 5х-6
2х -5х = -6
-3х = -6
х = 2
(5-3)*2 = 5*2-3*2
4 = 4