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 How would you go about finding this?

Question 111366: 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
How would you go about finding this?

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the first equation

Plug in x=-3 and y=4. This is the solution (-3,4)

Multiply

Add

So

Now move onto the next equation

Plug in x=-3 and y=4

Multiply

Subtract 4 from both sides

Divide both sides by -3 to isolate m

So

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