а) 5(3х+1,2)+х=6,8
х =0,05

б) 4(х+3,6)=3х-1,4
х =15,8

в) 13-4,5y=2(3,7-0,5у)
у=1,6

г) 5,6-7у=-4(2у-0,9)+2,4
у =0,4

решите пожалуйста с проверкой ​
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