Use the elimination method to find all solutions of the system of equations.

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Use the elimination method to find all solutions of the system of equations.
 
4x + 2y = 10
8x + y = 11
(xy) = 
  
Apr 21st, 2015

multiply 1s equation by 2:

8x +4y = 10

subtracting #2 form #1

8x+4y -8x-y = 10-11

3y = -9

y = -3

put it in equation #1

4x -6 =10

4x = 16

x = 4

(x, y) = (4, -3)


Apr 21st, 2015

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