SOLUTION: will you help me solve this problem: 9a+7b=-30 8b+5c=11 -3a+10c=73

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Question 159303This question is from textbook algebra 2
: will you help me solve this problem:
9a+7b=-30
8b+5c=11
-3a+10c=73 This question is from textbook algebra 2

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
9a+7b=-30
8b+5c=11
-3a+10c=73
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Rewrite as follows:
9a +7b +0=-30
0 +8b +5c=11
-3a+0 +10c=73
-----------------
Solve the system of equations by any method to get:
a= -1
b= -3
c= 7
========
Cheers,
Stan H.