а)5у-8=2у-5
5у-2у=8-5
3у=3
у=3:3
у=1
б)3/4х=27
х=27: 3/4
х=81/4
в)(2+3х)-(4х-7)=10
2+3х-4х+7=10
-1х=10-9
-1х=1/:(-1)
х=-1
г)2(х-1,5)+х=6
2х-3+х=6
3х=6+3
3х=9
х=9:3
х=3
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а)5у-8=2у-5
5у-2у=8-5
3у=3
у=3:3
у=1
б)3/4х=27
х=27: 3/4
х=81/4
в)(2+3х)-(4х-7)=10
2+3х-4х+7=10
-1х=10-9
-1х=1/:(-1)
х=-1
г)2(х-1,5)+х=6
2х-3+х=6
3х=6+3
3х=9
х=9:3
х=3