tolong dong no 3,4. bsk di kumpulin

3a) x - ⅔ = 1
x = 1 + ⅔
x = 1⅔

b) ½p = 2 - ½p
½p + ½p = 2
p = 2

c) ½ - k/2 = 3/10
- ½k = 3/10 - ½
- ½k = 3/10 - 5/10
- ½k = - 2/10
k = - 2/10 ÷ - ½
k = - 2/10 × - 2/1
k = 2/5

d) 5y = 3y + ⅜
5y - 3y = ⅜
2y = ⅜
y = ⅜ ÷ 2
y = 3/8 × ½
y = 3/16

4a) ½( a - 6 ) = 4
a - 6 = 4 ÷ ½
a - 6 = 4 × 2/1
a - 6 = 8
a = 8 + 6
a = 14
hp = { 14 }

b) x - ½ = 6 + ½x
x - ½x = 6 + ½
½x = 6½
x = 13/2 ÷ ½
x = 13/2 × 2/1
x = 13
hp = { 13 }

c) ( p - 3 ) = 2/5 ( p + 4 )
p - 3 = 2/5 p + 8/5
p - 2/5 p = 8/5 + 3
3/5 p = 8/5 + 15/5
3/5 p = 23/5
p = 23/5 ÷ 3/5
p = 23/5 × 5/3
p = 23/3
p = 7 ⅔
hp = { 7 ⅔ )

d) { 2y-11 / 3 } = { 5y+5 / 5 }

5 ( 2y - 11 ) = 3 ( 5y + 5 )

10y - 55 = 15y + 15

10y - 15y = 15 + 55

- 5y = 70

y = - 14

hp = { - 14 }