SOLUTION: Solve the system of equations using the elimination method. a+8b = 9 a+3b=-1

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Question 631148: Solve the system of equations using the elimination method.
a+8b = 9
a+3b=-1
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

a+8b =  9 

a+3b= -1   || subtracting the 2nd EQ fro the 1 Eq to eliminate the a-variable

    5b = 10

     b = 2   and a = -7   a+%2B+3%2A2+=+-1