SOLUTION: 7a+6b=-36. -7a+b=43

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Question 674716: 7a+6b=-36. -7a+b=43
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
7a+6b=-36
-7a+b=43 ADD.
------------------------
7B=7
B=7/7
B=1 ANS.
7A+6*1=-36
7A+6=-36
7A=-36-6
7A=-42
A=-42/7
A=-6 ANS.
PROOF:
-7*-6+1=43
42+1=43
43=43