Asked by alisha

the question is:

-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....
Answered by Damon
-3(3) -2(-1) - 7
-9 +2 -7
-7 - 7
-14
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