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math help please???
-3x ≤ 9
x ≤ -3
x ≥ -3
x ≥ 3
x ≤ 3
2x - 14 < 9x
x > -1/2
x < -1/2
x < -2
x > -2
-2 + 4x ≥ 4
x ≥ 3/2
x ≤ 3/2
x ≥ 2/3
x ≤ 2/3
2x + 4 > x + 6
x > 4
x < 4
x > 2
x < 2
2 Answers
- 1 decade agoFavorite Answer
Approach the inequality like an equation.
I'll do the two of them for you. You should be able to figure out the rest with this explanation:
-3x ≤ 9
Divide both sides by -3.
Answer: x ≤ -3
---
2x + 4 > x + 6
subtract 4 from both sides, x from both sides.
Answer: x > 2
- Anonymous1 decade ago
Be careful here. When you divide by a negative number, you have to FLIP the inequality sign. Look at the first one....
-3x</= 9
When you divide each side by neg 3......
x>/= -3
As for the rest: treat them like an equation. Isolate your variable (combining when needed), then do the rest like above.
