Question

3х+х=24 , 4х-х=12 , х+8=2х-8

Answer 1

1. 3x+x=24

4x=24

x=24:4

x=6

2. 4x-x=12

3x=12

x=4

3.

x+8=2x-8

x-2x=-8-8

-x=-16

x=16