SOLUTION: -9a+-12=8+-4
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Question 57745
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-9a+-12=8+-4
This question is from textbook
Answer by
funmath(2933)
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-9a+-12=8+-4
-9a-12=8-4
-9a-12=4
-9a-12+12=4+12
-9a=16
:
Check by substituting -16/9 in for a and see if both sides =:
We're right!!!
Happy Calculating!!!