mathematique 10x-3=22x+&19 3x+1=x+1 7x+10=x-20

10x - 3 = 22x + 19 
- 3 - 19 = 22x - 10x
- 22 = 12x
- 22/12 = x
- 11/6 = x

3x + 1 = x + 1
3x - x = 1 - 1
2x = 0
x = 0/2
x = 0

7x + 10 = x - 20
7x - x = - 20 - 10
6x = - 30
x = - 30/6
x = - 5

10x-3=22x+19
10x -22x  = 19 +3
-12x = 22
-x = 22/12
x = - 11/6



3x+1=x+1
3x - x = 1 -1
2x = 0
x=0



7x+10 = x-20
7x -x = -20 -10
6x = -30
x = - 30/6
x = - 5