Question

3x+50-30=x+80
7x-35+80-30+x=3x+80-10+50
2x-1/2=x+1

Answer 1

3x-x=30-50+80
2x=30-50+80
x=60/2
x=30

7x+x-3x=35-80+30+80-10+50
5x=105
x=105/5
x=21

2x-x=1+1/2
x=1+1/2
x=3/2