Помогите пж 11/7=2-x/5

Question

Помогите пж 11/7=2-x/5

Answer 1

А) 11/7=2 - x/5;
 х/5-2=-11/7
х-10=-55/7
х=-55/7+10
х=-7 6/7+10
х=2 1/7

б) 3x/5 = 6 +x/3
 х/3-6=-3х/5
5х-90=-9х
5х+9х=90
14х=90х=90:14
х= 6 6/14 = 6 3/7

в) 5- y/3 = y/6 + 2/3
30-2у=у+4
-2у-у=4+30
-3у=34
3у=-34
у=-34:3
у=- 11 1/3