tolongg dongg bantuuu

a) y = x + 5
2x + y = 17
2x + x + 5 = 17
3x + 5 = 17
3x = 17 - 5
3x = 12
x = 4
y = x + 5
y = 4 + 5
y = 9
hp = {4,9}

b) x = 6 - y
3x - y = 6
3(6 - y) - y = 6
18 - 3y - y = 6
18 - 4y = 6
- 4y = 6 - 18
- 4y = - 12
y = 3
x = 6 - y
x = 6 - 3
x = 3
hp = (3,3)

c) 2y = x - 8
x + 2y = 10
x + x - 8 = 10
2x - 8 = 10
2x = 10 + 8
2x = 18
x = 9
2y = x - 8
2y = 9 - 8
2y = 1
y = ½
hp = {9,½)

d) 3y = 4x + 7
9x - 6y + 8 = 0
9x - (2 . 3y) + 8 = 0
9x - 2(4x + 7) + 8 = 0
9x - 8x - 14 + 8 = 0
x - 6 = 0
x = 6
3y = 4x + 7
3y = 4(6) + 7
3y = 24 + 7
3y = 31
y = 31/3
hp = {6 , 31/3}

e) 5x = 2 - y
15x + 4y - 11 = 0
(3 . 5x) + 4y - 11 = 0
3(2 - y) + 4y - 11 = 0
6 - 3y + 4y - 11 = 0
6 + y - 11 = 0
y - 5 = 0
y = 5
5x = 2 - y
5x = 2 - 5
5x = - 3
x = - ³/5
hp = {- 3/5 , 5}

f) 2y - x = 7
2y = x + 7
x + 2y = 21
x + x + 7 = 21
2x + 7 = 21
2x = 21 - 7
2x = 14
x = 7
2y = x + 7
2y = 7 + 7
2y = 14
y = 7
hp = {7,7}

g) x + y = 9
2x + 1 = x + y
2x + 1 = 9
2x = 9 - 1
2x = 8
x = 4
x + y = 9
4 + y = 9
y = 9 - 4
y = 5
hp = {4,5}

h) x - y = y
2(x - y) + y = 15
2(y) + y = 15
2y + y = 15
3y = 15
y = 5
x - y = y
x - 5 = 5
x = 5 + 5
x = 10
hp = (10,5)