Question

Tentukan penyelesaian dari:
1. -7x > 21
2. -2/3X ≥ -6
3. 15 - 8x ≤ 2x + 30
4. 3 (1 - p) ≤ 18
tolong isi ya...

Answer 1

-7x > 21
x < 21/-7
x<-3   (no1)

-2/3x > -6
x < -6 . -3/2
x < 9  (no2)

15-8x < 2x+30
-8x-2x < 30-15
-10x < 15
x > 15/-10
x > -1,5

3(1-p) < 18
3-3p < 18
-3p < 18-3
-3p < 15
p > 15/-3
p > -5