1) 5*(2х-1)=3*(4х+5)
10х-5=12х+15
10х-12х=15+5
-2х=20
х=-10
2) 9- 5(у+2)=((7у-5)*(-3)
9-5у-10=-21у+15
-5у+21у=15+10-9
16у=16
у=16/16
у=1
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Answers & Comments
1) 5*(2х-1)=3*(4х+5)
10х-5=12х+15
10х-12х=15+5
-2х=20
х=-10
2) 9- 5(у+2)=((7у-5)*(-3)
9-5у-10=-21у+15
-5у+21у=15+10-9
16у=16
у=16/16
у=1