alancon22 alancon22
  • 11-04-2017
  • Mathematics
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How to find where the equations meet.

How to find where the equations meet class=

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IcefromTaiwan
IcefromTaiwan IcefromTaiwan
  • 11-04-2017
the first sentence → x - 2y = -1
the second one → 3x - 2y = -3

multiply the first one by -1
you can get → -x + 2y = 1

plus two sentences together
you can get → 2x = -2

so you are able to know that x = -1
and y = 0
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