Question

а) 3*(2х-1)+12=х

б) х/3+х/3=7

Answer 1

6x-3+12=x

5x=3-12

5x=-9

x=-9/5

 

x/3+x/3=7

x+x=21

2x=21

x=10.5

Answer 2

а) 3*(2х-1)+12=х

6х-3+12=х

6х-х=3-12

5х=-9

х=-9/5

х=-1,8

б) х/3+х/3=7

2х/3=7

2х=3*7

2х=21

х=10,5