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Posted by **alisha** on Saturday, October 25, 2008 at 2:32pm.

-3x-2z-7

if x=3 and z= -1

i did the the question and got the answer - 14 ....but the answer key that i got say -20....can anyone help me... with this plz....

- math help needed -
**Damon**, Saturday, October 25, 2008 at 4:29pm-3(3) -2(-1) - 7

-9 +2 -7

-7 - 7

-14

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