1) 3а – 28 = 17 2) 8х – 32 = - 56 3) 0,8у + 4,8 = -4,8 4) 3 + 11у = 203 + у 5) -9а + 8 = -10а – 2 6) 7m + 1 = 8m + 9 7) 5х +(3х – 7) = 9 8) 3у –(5 – у) = 11
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Ответ:
1) a=15
2)x=-3
3)y=-12
4)y=20
5)a=-10
6)m=-10
7)x=2
8)y=4