SOLUTION: Find values for m and b in the following system so that the solution to the system is (-3, 4). 5x + 7y = b mx + y = 22

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Question 120872: Find values for m and b in the following system so that the solution to the system is (-3, 4).
5x + 7y = b
mx + y = 22
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
5x+%2B+7y+=+b
mx+%2B+y+=+22

Just substitute the values from the ordered pair given and solve:
5%28-3%29%2B7%284%29=b
-15%2B28=b
b=13

m%28-3%29+%2B+4+=+22
m%28-3%29+=+18
m=18%2F-6
m=-3