3х-12=0 2х+6=0 7х-14=0 х-3х=0 10х+2х=0

Question

3х-12=0 2х+6=0 7х-14=0 х-3х=0 10х+2х=0

Answer 1

3х-12=0 3х=12 х=12/3 х=4 2х+6=0 2х=-6 х=-6/2 х=-3 х-3х=0 -2х=0 х=0 10х+2х=0 12х=0 х=0