nbuzhduga
  • nbuzhduga
Solve the following system of equations: (1 point) −2x + y = 1 −4x + y = −1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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YoloShroom
  • YoloShroom
This is a homework review problem, right? <3
anonymous
  • anonymous
x=1,y=3
YoloShroom
  • YoloShroom
You need to explain.

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anonymous
  • anonymous
oh..... -2x+y=1 -4x+y=-1 y=1+2x -4x+1+2x=-1 -2x=-1 x=1
anonymous
  • anonymous
You need to isolate the x and isolate the y to one side so you can solve. You can always set the problem equal to zero and plug numbers in to check them
anonymous
  • anonymous
and next we put x on one of equations -2+y=1 y=3
retirEEd
  • retirEEd
It is easier to subtract equation 2 from equation 1. −2x + y = 1 −4x + y = −1 4x - y = 1 sometimes it is easier to multiple equation 2 by - 1 and add in either case the y is eliminated 2x + 0 = 2 solve for x and plug it back in and solve for y

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