2007-05-10 13:56:50 · 4 answers · asked by jizzy 1 in Science & Mathematics ➔ Mathematics
18 - 3x > 75
subtract both sides by 18 =>
-3x > 57
divide both sides by -3 and switch sign
x < -19
2007-05-10 14:00:53 · answer #1 · answered by tedhyu 5 · 0⤊ 0⤋
I'm pretty sure you can solve an inequality like this the same way you solve any equation. Just make sure that you do the same thing to both sides.
18-3x > 75
-3x > 57 (subtract 18 from both sides)
x < -19 (divide both sides by -3)
When you divide both sides of an inequality you have to flip the symbol, so that greater than because less than. So the solution is x < -19.
2007-05-10 21:02:04 · answer #2 · answered by Anonymous · 0⤊ 0⤋
18 > 75 + 3x
- 57 > 3x
x < - 57/3
x < - 19
2007-05-11 11:52:12 · answer #3 · answered by Como 7 · 0⤊ 0⤋
Subtract 18
-3x > 57
x < -19, inequality reverses.
2007-05-10 21:00:02 · answer #4 · answered by richardwptljc 6 · 0⤊ 0⤋