SOLUTION: Find values of a and b so that the linear system shown has a solution of (-9,4). ax+by=-16 ax+by=-56

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Question 705363: Find values of a and b so that the linear system shown has a solution of (-9,4).
ax+by=-16
ax+by=-56
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint:

For each equation, replace x with -9 and y with 4 to get

a(-9)+b(4)=-16
a(-9)+b(4)=-56

and that becomes

-9a+4b = -16
-9a+4b = -56