anonymous
  • anonymous
Two lines, A and B, are represented by equations given below: Line A: y = x − 4 Line B: y = 3x + 4 Which of the following shows the solution to the system of equations and explains why?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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pooja195
  • pooja195
it tells you what y equals right ? so lets plug equation 1 into equation 2 x-4=3x + 4
pooja195
  • pooja195
solve for x
anonymous
  • anonymous
-4?

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anonymous
  • anonymous
@pooja195
pooja195
  • pooja195
good :) now we need to plug that into equation 1 :P -4-4=?
anonymous
  • anonymous
-8, but because why? because it satisfies both equations or because the point does not lie on any axis? @pooja195
pooja195
  • pooja195
we have (-4,-8) as the solution We plug -4 into the other equation to find the value of y

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