Ответ:
1) 3y-15=y+7
2y=22
y=11
2(2x-1)=3x+6
4x-2=3x+6
x=8
2) x+3=4x-6
3x=9
x=3
2/3y+3=2y-7
4/3y=10
4y=30
y=7,5
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Ответ:
1) 3y-15=y+7
2y=22
y=11
2(2x-1)=3x+6
4x-2=3x+6
x=8
2) x+3=4x-6
3x=9
x=3
2/3y+3=2y-7
4/3y=10
4y=30
y=7,5