tolong di bantu yang bisa jawab semoga yang jawab masa depannya suksesAmin

4a) 2x = 4a + 10
x = 2a + 5
b) 3x = 5a - 12
x = 5/3 a - 4
c) 2x + 3a = 18
2x = - 3a + 18
x = - 3/2 a + 9
d) 3x - 4a = 24
3x = 4a + 24
x = 4/3 a + 8

5a) x = 3
y = 2x + 7
y = 2(3) + 7
y = 6 + 7 = 13
b) x = 8
y = 2x + 7
y = 2(8) + 7
y = 16 + 7 = 23
c) x = - 4
y = 2x + 7
y = 2(-4) + 7
y = - 8 + 7 = - 1
d) x = - 7
y = 2x + 7
y = 2(-7) + 7
y = - 14 + 7 = - 7

6a) y = 0
y = 4x - 8
0 = 4x - 8
4x = 8
x = 2
b) y = 4
y = 4x - 8
4 = 4x - 8
4x = 4 + 8
4x = 12
x = 3
c) y = - 4
y = 4x - 8
- 4 = 4x - 8
4x = - 4 + 8
4x = 4
x = 1
d) y = - 8
y = 4x - 8
- 8 = 4x - 8
- 8 + 8 = 4x
4x = 0
x = 0