SOLUTION: How can I find the values of the constants of the system of equations? 6.5=936a+b 8.9=1256a+b

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Question 731507: How can I find the values of the constants of the system of equations?
6.5=936a+b
8.9=1256a+b
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
6.5=936a+b
-(8.9=1256a+b) SUBTRACT
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-2.4=-320a
a=-2.4/-320
a=.0075 ans.
6.5=936(.0075)+b
6.5=7.02+b
b=6.5-7.02
b=-.52 ans.
Proof:
8.9=1256(.0075)+-.52
8.9=9.42-.52
8.9=8.9