SOLUTION: Solve the following pairs of simultaneous equations using the elimination method. (a) 9x-2y=3 and 3x+2y=9 (b) 2x+7y=1 and 3x+4y=8 Thank you very much!

Algebra ->  Finance -> SOLUTION: Solve the following pairs of simultaneous equations using the elimination method. (a) 9x-2y=3 and 3x+2y=9 (b) 2x+7y=1 and 3x+4y=8 Thank you very much!      Log On


   

Question 880793: Solve the following pairs of simultaneous equations using the elimination method.
(a) 9x-2y=3 and 3x+2y=9 (b) 2x+7y=1 and 3x+4y=8

Thank you very much!
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

9x-2y=3 and 

3x+2y=9   Add EQs to eliminate y

 12x = 12

   x = 1  and y = 6 9-2y+=+3

Ordered Pair (1,6) the solution for this System

eliminate x

2x+7y=1  Multiply by 3

3x+4y=8  Multiply by -2 

Add 13y = 13

      y = 1   and x = -3   2x%2B7=1

(-3,1) the solution for this System