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LiyahWasHere15
LiyahWasHere15 LiyahWasHere15
  • 01-11-2015
  • Mathematics
Answered

What is the solution to the system of linear equations y-x=4 and y+2x=1?

Verified Answer :

Panoyin
Panoyin Panoyin
  • 02-11-2015

-x + y = 4
2x + y = 1
     -3x = 3
      -3    -3
        x = -1
2x + y = 1
2(-1) + y = 1
     -2 + y = 1
   + 2       + 2
         y = 3
  (x, y) = (-1,3)

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