1) 4x=8
x=2
2) 7y=-21
y=-3
3)8x=16
4)4y=16
y=4
5) a=7
6) s=-107
1) 5х+4 = х+12
5х-х = 12-4
4х = 8
х = 8/4
х = 2;
2) 13-5у = 8-2у
-5у+2у = 8-13
-3у = -5
у = 5/3;
3) 5х+(3х-7) = 9
5х+3х-7 = 9
5х+3х = 9+7
8х = 16
х = 16/8
4) 3у-(5-у) = 11
3у-5+у = 11
3у+у = 11+5
4у = 16
у = 16/4
у = 4;
5) (7а+1)-(6а+3) = 5
7а+1-6а-3 = 5
7а-6а = 5-1+3
а = 7;
6) (8s+11)-113 = 9s-5
8s+11-113 = 9s-5
8s-9s = -5-11+113
-s = 97
s = -97
1) 4x=8
x=2
2) 7y=-21
y=-3
3)8x=16
x=2
4)4y=16
y=4
5) a=7
6) s=-107
1) 5х+4 = х+12
5х-х = 12-4
4х = 8
х = 8/4
х = 2;
2) 13-5у = 8-2у
-5у+2у = 8-13
-3у = -5
у = 5/3;
3) 5х+(3х-7) = 9
5х+3х-7 = 9
5х+3х = 9+7
8х = 16
х = 16/8
х = 2;
4) 3у-(5-у) = 11
3у-5+у = 11
3у+у = 11+5
4у = 16
у = 16/4
у = 4;
5) (7а+1)-(6а+3) = 5
7а+1-6а-3 = 5
7а-6а = 5-1+3
а = 7;
6) (8s+11)-113 = 9s-5
8s+11-113 = 9s-5
8s-9s = -5-11+113
-s = 97
s = -97