Question

б) 3-х=1+х г) 5х-8=3х-8

Answer 1

3-x=1+x | +x
3= 1+2x | -1
2=2x | : 2
x=1


5x-8=3x-8 |+8
5x=3x | -3x
2x=0 | :2
x=0