1. а) -(3y+7)=8-2(8-y)
б)-2(2-5x)=2(x-3)-5
в)4x-2(x+7)=2(3-x)
2.
а)1,24x+3,46=1,76x+6,58
б)-4,92y-(0,08y+5,12)=-0,88-y
3.
На сколько процентов 3 больше 2?
4.
На сколько процентов 2 меньше 3?
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