130-4x=70
4 х=70-130
4 х=-60
х=-20
9y-89=55
9 у=55+89
9 у=144
у=16
33y=132
33 у=132
у=4
2x-25=45
2 х=45+25
2 х=70
х=35
130-4x=70
4 х=70-130
4 х=-60
х=-20
9y-89=55
9 у=55+89
9 у=144
у=16
33y=132
33 у=132
у=4
2x-25=45
2 х=45+25
2 х=70
х=35