Posted by **bindiya farswani** on Saturday, January 30, 2010 at 3:09am.

I've to solve the following absolute value equation 8|w-7|=72.

I solved the equation and the answers I got were -2 and 16. However the problem is that when I'm checking the equation with the answers it's not coming right.

I.E.

8|16-7|=72

8|9| = 72

8(9)= 72

72 = 72 (which is right)

8|-2-7|=-72

8|-9| = -72

8 (9) = - 72

72 = -72 (its coming wrong)

Thus is the second equation right and am I solving it in the right way?

- maths -
**bindiya farswani**, Saturday, January 30, 2010 at 3:49am
Sorry! I got it now! I was solving it the wrong way! silly me! :p:) Sorry to bother you!

- maths -
**drwls**, Saturday, January 30, 2010 at 6:27am
Nice work! Both of your solutions are correct. Thanks for rechecking (and doing) your own work! It makes our job easier.

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