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January 28, 2015

January 28, 2015

Posted by **brooke** on Tuesday, April 12, 2011 at 7:51pm.

2k+3=4k-5

2k-4k+3-3=-5-3

2k-4k=-5-3

-2k/-2k = -8/2

k=4

- grade 9 math -
**Ms. Sue**, Tuesday, April 12, 2011 at 8:02pm2k+3=4k-5

Let's check it by substituting 4 for k.

(2 * 4) + 3 = (4 * 4) - 5

8 + 3 = 16 - 5

Yep!

11 = 11

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