1) х=60:12=5
2)у=132:33=4
3)z=357:51=7
4)2х-15=13
2х=13+15
2х=28
х=28:2
х=14
5)7у-25=45
7у=45+25
7у=70
у=70:7
у=10
6)130-4х=70
-4х=70-130
-4х= -60
х= -60: (-4)
х=20
7) 49 -3х=34
-3х= 34-49
-3х = -15
х= -3: (-15)
х=5
8)9у-89=55
9у=55+89
9у= 144
у= 144: 9
у=16
9) 74 - 8z = 2
-8z= 2-74
-8z = -72
z= -72: (-8)
z=9
1) х=60:12=5
2)у=132:33=4
3)z=357:51=7
4)2х-15=13
2х=13+15
2х=28
х=28:2
х=14
5)7у-25=45
7у=45+25
7у=70
у=70:7
у=10
6)130-4х=70
-4х=70-130
-4х= -60
х= -60: (-4)
х=20
7) 49 -3х=34
-3х= 34-49
-3х = -15
х= -3: (-15)
х=5
8)9у-89=55
9у=55+89
9у= 144
у= 144: 9
у=16
9) 74 - 8z = 2
-8z= 2-74
-8z = -72
z= -72: (-8)
z=9