Question

3х-4+2х=6+2х-4
50-7у-16=3у=16
5х-6+х=2*(х-1)
2*(х-6)-х=3х+4х

Answer 1

1, 5х-4=2+2х, х=2
2, 34-7у=3у+16, у=1,8
3, 6х-6=2х-2, х=1
4, 2х-12-х=7х, х-7х=12, х=-2