tolong jawab persoalan no 1,2,3 dengan benar dengan caranya

Peresamaan linier

1.
2x + 6 =  3/2 .....kalikan 2
4x +12 = 3
4x = 3 -12
4x = - 9
x = - 9/4

2.
2x + 6 = 4x - 12
2x- 4x = -12 - 6
- 2x = - 18
x = 9

3.
2x/3 + 6 = x + 1....kalikan 3
2x + 18 = 3x + 3
2x - 3x = 3 -18
-x = - 15
x = 15