Решите уравнение: 1)4х+5(3-2х)=5-11х; 2)19-2(3х+8)=2х-37; 3)8х+3(7-2х)=4х+3;...

Question

Решите уравнение:
1)4х+5(3-2х)=5-11х;
2)19-2(3х+8)=2х-37;
3)8х+3(7-2х)=4х+3;
4)23-(3х+8)=1-17х
помогите прошу

Answer 1

1)4х+5(3-2х)=5-11х;
4х+15-10х=5-11х
4х-10х+11х=5-15
5х=-10
х=-10:5
х=-2

2)19-2(3х+8)=2х-37;
19-6х-16=2х-37
-6х-2х=-37+16-19
-8х=-40
х=-40:(-8)
х=5

3)8х+3(7-2х)=4х+3;
8х+21-6х=4х+3
8х-6х-4х=3-21
-2х=-18
х=-18:(-2)
х=9

4)23-(3х+8)=1-17х
23-3х-8=1-17х
-3х+17х=1+8-23
14х=-14
х=-14:14
х=-1