Question 55835
FIND THE 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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Substitute the values of x and y into the equations to get:
1st: 5(-3)+7(4)=B
     -15+28= B
      B=13
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2nd: M(-3)+4=22
-3M=18
M=-6
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Cheers,
Stan H.