inequalities?

0 ⤊

solve the following inequalites:
3X-3<9
-7X<= -X+24
3/5(X+8)>9X-12
thanx

2007-01-04 09:16:53 · 2 answers · asked by cowboizgrl 1 in Education & Reference ➔ Homework Help

2 answers

1] 3x - 3 < 9
3x < 9+3
3x < 12
x < 4.

2] - 7x <= - x + 24
- 6x <= 24
x >= - 4.

3] 3(x + 8) > 5(9x - 12)
3x + 24 > 45x - 60
3x - 45x > -60 - 24
- 42x > - 84
x < 2.

2007-01-04 09:59:13 · answer #1 · answered by S. B. 6 · 0⤊ 0⤋

3x-3<9
+3 +3
3x<9
/3 /3
x<3

-7x<=-x+24
+x +x
-6x<=24
/-6 /-6
x<=-4

3/5*x+3/5*8>9x-12
I can't think of what to do from there.

2007-01-04 17:53:51 · answer #2 · answered by shortie 3 · 0⤊ 1⤋