tolong bantu y cepattttt

Bab Pertidaksamaan Linear
Matematika SMP Kelas VII

a] 7 - x < x - 3
- x - x < -3 - 7
-2x < -10
x > (-10) : (-2)
x > 5

b] 3x + 5 >= 14 - 6x
3x + 6x >= 14 - 5
9x >= 9
x >= 9/9
x >= 1

c] 8 - 7x >= 19 - 5x
-7x + 5x >= 19 - 8
-2x >= 11
x <= -11/2

d] 10x + 6 > 7 (3 - x)
10x + 6 > 21 - 7x
10x + 7x > 21 - 6
17x > 15
x > 15/17