Решите уравнения:
1) 6х+10=4+12
2) 7х+25=10х+6
3)0,4(6у-7)=0,5(3у+7)
4) 0,2(5х-2)=0,3(2х-1)-0,9
5) 1-5(1,5+х)=6-7,5х
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