3х-6=х+4 х+(х-20)+3х=180 5х-22=2х+14 х+(х+24)=5х

1- 3х-6=х+4 2х=10 Х=5 2- Х+(х-20)+3х=180 5х=200 Х=40 3- 5х-22=2х+14 3х=36 Х=12 4- Х+(х+24)=5х -3х=-24 Х=8