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OpenStudy (anonymous):
Using substitution to solve the system x = 2y + 3 and 4x - 5y = 9, which of the following could be the first step? Answer x - 2y = 3 4x - 5y = 9 4(2y + 3) - 5y = 9 x + 2y = 4x - 5y 5x - 3y = 12 - 3x + 7y = -6
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OpenStudy (blurbendy):
4(2y + 3) - 5y = 9 because we are substituting x into the second equation and that's what the question asks us to do
OpenStudy (anonymous):
thanks!
OpenStudy (blurbendy):
anytime!
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