a, \(5x+30=110\)
\(5x=110-30\)
\(5x=80\)
\(x=80:5\)
\(x=16\)
b, \(2x-18=56\)
\(2x=56+18\)
\(2x=74\)
\(x=74:2\)
\(x=37\)
5x+30=110
5x=110-30
5x=80
x=80:5
x=16
2x-18=56
2x=56+18
2x=74
x=74:2
x=37
5x+30=110
5x=110-30
5x=80
x=80:5
x=16
2x-18=56
2x=56+18
2x=74
x=74:2
x=37
5x+30=110
5x=110-30
5x=80
x=80:5
x=16
2x-18=56
2x=56+18
2x=74
x=74:2
x=37
5x+30=110
5x=110-30
5x=80
x=80:5
x=16
b2x-18=56
2x=56+18
2x=74
x=74:2
x=37
5x+30=110
5x=110-30
5x=80
x=80/5
x=16
2x-18=56
2x=56+18
2x=74
x=74/2
x=37
5x+30=110
5x=110-30
5x=80
x=80:5
x=16
2x-18=56
2x=56+18
2x=74
x=74:2
x=37