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January 31, 2015

January 31, 2015

Posted by **Nikki** on Friday, August 20, 2010 at 8:04pm.

Solve: 0.9x+9<_1.7x-8

- Math -
**MathMate**, Friday, August 20, 2010 at 8:59pm0.9x+9 ≤ 1.7x-8

Isolate variable x on the left, and constants on the right:

0.9x - 1.7x ≤ -8 -9

-0.8x ≤ -17

divide each side by -0.8 (and change the direction of the inequality)

x ≥ 17/0.8

x ≥ 21.25

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