Question

решите уравнения 5х-4 (15х+6)=3 (4х+5) 2) 60-4х=5*(6-3х)+4

Answer 1

2х+17=22+3х
2х-3х=22-17
-х=5
х=5

25-4х=12-5х
-4х+5х=12-25
х=13

х=2/3х+1 |х3
3х=2х+3
3х-2х=3
х=3

х-1/2=3/4х  |х4
4х-2=3х
4х-3х=2
х=2