5(7-у)=4(у-3)
35-5у=4у-12
-5у-4у=-12-35
-9у=-47
у=47/9=5 2/9
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5(7-у)=4(у-3)
35-5у=4у-12
-5у-4у=-12-35
-9у=-47
у=47/9=5 2/9