1) 9:6=х:10
6х=10*9
6х=90
х=90:6
х=15
15:10=12:(3у-1)
10*12=15(3у-1)
120=45у-15
45у=120+15
45у=135
у=135:45
у=3
2) 8:4=6:(6х-3)
8*(6х-3)=6*4
48х-24=24
48х=24+24
48х=48
х=48:48
х=1
8:4=5:(3у-2)
8*(3у-2)=4*5
24у-16=20
24у=20+16
24у=36
у=36:24
у=1,5
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Verified answer
1) 9:6=х:10
6х=10*9
6х=90
х=90:6
х=15
15:10=12:(3у-1)
10*12=15(3у-1)
120=45у-15
45у=120+15
45у=135
у=135:45
у=3
2) 8:4=6:(6х-3)
8*(6х-3)=6*4
48х-24=24
48х=24+24
48х=48
х=48:48
х=1
8:4=5:(3у-2)
8*(3у-2)=4*5
24у-16=20
24у=20+16
24у=36
у=36:24
у=1,5