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brian2
Jan 18, 2010, 09:35 PM
I really need hel its solving linear inequalities multi steps

brian2
Jan 18, 2010, 09:36 PM
8n+2-10n<20

jaysie90
Jan 18, 2010, 09:46 PM
Subtract 2 from both sides.
8n - 10n < 18

Combine 8n and -10n
-2n
-2n < 18

Divide both sides by -2

N < -9

Post me back if you have any problems or more questions.

ArcSine
Jan 20, 2010, 05:16 AM
Except remember that when dividing (or multiplying) both sides by a negative number, you reverse the sense of the inequality.

You can see, e.g. that n = -10 satisfies the proposed conclusion (n < -9) but doesn't satisfy the original inequality.