2x+3=9 x+3x=(10+6)x 2 7x-x=36

Question

2x+3=9
x+3x=(10+6)x 2
7x-x=36

Answer 1

2х+3=9
2х=9-3
2х=6
х=6/2
х=3

х+3х=(10+6)х2
4х=20+12
4х=32
х=32/4
х=8

7х-х=36
6х=36
х=36/6
х=6