niasheffield niasheffield
  • 13-11-2018
  • Mathematics
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Systems of equations substitution y=5x-3 -x+7y=-21

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Sea2Ray Sea2Ray
  • 13-11-2018
-x+7 (5x-3)=-21
-x+35x-21=-21
34x-21=-21
34x=0
The answer to find x or y is not possible
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