SOLUTION: Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y). x + 2y = 8 2x + y = 7

Algebra ->  Systems-of-equations -> SOLUTION: Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y). x + 2y = 8 2x + y = 7      Log On


   

Question 318487: Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y).
x + 2y = 8
2x + y = 7
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.x+%2B+2y+=+8
2.2x+%2B+y+=+7
From eq. 1,
x=8-2y
Substitute into eq. 2,
2%288-2y%29%2By=7
16-4y%2By=7
-3y=-9
highlight%28y=3%29
Then from above,
x=8-2y
x=8-2%283%29
x=8-6
highlight%28x=2%29
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(2,3)