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1. Solve the system using substitution.  Write the solution as an ordered pair. 

 3x + 4y = -7   2y - x = -1
Feb 11th, 2015

x = 2y + 1

3(2y + 1) + 4y = -7

6y + 3 + 4y = -7

10y = -10

y = -1

Feb 11th, 2015

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Feb 11th, 2015
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Feb 11th, 2015
Sep 25th, 2017
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