Question

решите уравнение 1)9x-7=6x+14; 2)3(4-2x)+6=-2x+4.

Answer 1

1) 3х=21 -> х=7

2) 12-6х+6+2х-4=0
4х=14
х=3,5

Answer 2

9х-7=6х+14
9х-6х=7+14
3х=21
х=21:3
х=7

3(4-2х)+6=-2х+4
12-6х+6=-2х+4
-6х+2х=-12-6+4
-4х=-14
х=3.5