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posted by Anonymous on Sunday, March 10, 2013 at 9:48pm.

how to substitute 3x+y=11 4x-5y= -22

y = (11 - 3 x) 4 x - 5 (11 - 3 x) = -22 4 x - 55 + 15 x = -22 19 x = - 77 etc

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