1-Б, 2-А, 3-Г, 4-В
Пошаговое объяснение:
1) Б
3х-4=2х+5
3х-4=2х+53х-2х=5+4
3х-4=2х+53х-2х=5+4х=9
2) А
2(х-3)=х-15
2(х-3)=х-152х-6=х-15
2(х-3)=х-152х-6=х-152х-х=6-15
2(х-3)=х-152х-6=х-152х-х=6-15х= -9
3) Г
6(х+1) =5(х+2)
6(х+1) =5(х+2)6х+6=5х+10
6(х+1) =5(х+2)6х+6=5х+106х-5х=10-6
6(х+1) =5(х+2)6х+6=5х+106х-5х=10-6х=4
4) В
-2(х-2)=3(х+8)
-2(х-2)=3(х+8)-2х+4=3х+24
-2(х-2)=3(х+8)-2х+4=3х+24-2х-3х=24-4
-2(х-2)=3(х+8)-2х+4=3х+24-2х-3х=24-4-5х=20
-2(х-2)=3(х+8)-2х+4=3х+24-2х-3х=24-4-5х=20х= - 4
1-Б, 2-А, 3-Г, 4-В
Пошаговое объяснение:
1) Б
3х-4=2х+5
3х-4=2х+53х-2х=5+4
3х-4=2х+53х-2х=5+4х=9
2) А
2(х-3)=х-15
2(х-3)=х-152х-6=х-15
2(х-3)=х-152х-6=х-152х-х=6-15
2(х-3)=х-152х-6=х-152х-х=6-15х= -9
3) Г
6(х+1) =5(х+2)
6(х+1) =5(х+2)6х+6=5х+10
6(х+1) =5(х+2)6х+6=5х+106х-5х=10-6
6(х+1) =5(х+2)6х+6=5х+106х-5х=10-6х=4
4) В
-2(х-2)=3(х+8)
-2(х-2)=3(х+8)-2х+4=3х+24
-2(х-2)=3(х+8)-2х+4=3х+24-2х-3х=24-4
-2(х-2)=3(х+8)-2х+4=3х+24-2х-3х=24-4-5х=20
-2(х-2)=3(х+8)-2х+4=3х+24-2х-3х=24-4-5х=20х= - 4