tolong jawab bsk di kumpilim

1. 24m=12
m = 12/24
= 1/2

2. 3z+11= -28
3z = -28-11
3z = -39
z= -13

3. 25-4y=6y+15
-4y-6y=15-25
-10y = -10
y = 1

4. 1/3(x-2)=2/3x - 13/3
1/3x -2/3 = 2/3x - 13/3
1/3x - 2/3x =2/3-13/3
-1/3x = -11/3
x = 11