8-у=у+2
8-2=у+у
6=2у
у=6:2
у=3
108÷(48-3х)=6
48-3х=108÷6
48-3х=18
3х=48-18
3х=30
х=30÷3
х=10
проверка
108/48-3×10=6
108/48-30=6
108/18=6
6=6
У-8/15у+1/6=1/3
1у-8/15у=1/3-1/6
7/15 у = 1/6
у=1/6 : 7/15
у=1/6 * 15/7
у=15/42
у=5/14
60 - (60 * 0,3) = 60 - 18 = 42
60 - (60 * 0,75) = 60 - 45 = 15