√136
1)(3у-7):5=33:15.
2)35:(21-5у)=5:2.
3)64:72=(7у+3):9.
4)53:4=212:(6у-8)
√137

1)11у/20=16:80
2)5,1:8,7=34у/29
3)7,2:2,7=32у/3
Помогите срочно!!
Даю 30 балов
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