Question

Жду от вас помощи………"………

Answer 1

1) 11+2х=55+3х
2х-3х=55-11
-х=44
х=-44
2) -15-3х=-7х+45
-3х+7х=45+15
4х=60
х=60:4
х=15
3) -3х-17=8х-105
-3х-8х=-105+17
-11х = -88
х = -88:(-11)
х = 8

Answer 2

2) 2(2+у)=19-3у; 4+2у=19-3у; 2у+3

Answer 3

2у+3у=19-4; 5у=15; у=15:5=3

Answer 4

2) в. 9b+3-12=12; 9b-9=12; 9b=12+9; 9b=21; b=21:9=2 целые 1/3

Answer 5

2) б. 4-с+2с-6=-13; с=-13-4+6; с=-11