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RouQian
RouQian RouQian
  • 07-06-2014
  • Mathematics
Answered

8x=10y
2x-y=5
solve x and y

Verified Answer :

konrad509
konrad509 konrad509
  • 07-06-2014

\(8x=10y\\ 2x-y=5\\\\ 4x=5y\\ y=2x-5\\\\ 4x=5(2x-5)\\ 4x=10x-25\\ 6x=25\\ x=\frac{25}{6}\\\\ y=2\cdot\frac{25}{6}-5\\ y=\frac{25}{3}-\frac{15}{3}\\ y=\frac{10}{3}\)

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