tolong dengan caranya ya

3a) 24m = 12
m = 12/24
m = ½
hp = ( ½ )

b) 3z + 11 = - 28
3z = - 28 - 11
3z = - 39
z = - 13
hp = ( - 13 )

c) 25 - 4y = 6y + 15
- 4y - 6y = - 25 + 15
- 10y = - 10
y = 1
hp = ( 1 )

d) ⅓ ( x - 2 ) = ⅔ x - 13/3
⅓ x - ⅔ = ⅔ x - 13/3
⅓x - ⅔x = ⅔ - 13/3
- ⅓ x = - 11/3
x = - 11/3 ÷ - 3/1
x = - 11/3 × -1/3
x = 11/9
x = 1 2/9
hp = ( 1 2/9 )


4a) 6x + 5 = 26 - x
6x + x = 26 - 5
7x = 21
x = 3

b) 2 - 4x = 3
- 4x = 3 - 2
- 4x = 1
x = - ¼

c) x - 12 = 2x + 36
x - 2x = 36 + 12
- x = 48
x = - 48

d) - 5x - 4x + 10 = 1
- 9x = 1 - 10
- 9x = - 9
x = 1

e) 2 + x/4 = 5
8/4 + x/4 = 5
8 + x = 5 × 4
8 + x = 20
x = 20 - 8
x = 12