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OpenStudy (anonymous):
For the following system, use the second equation to make a substitution for y in the first equation. 3x + y = 1 y + 4 = 5x What is the resulting equation? 3x + 5x - 4 = 1 3x + 4 - 5x = 1 3x + 5x + 4 = 1
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OpenStudy (alexwee123):
second eq) y=5x-4 first) 3x+y=1 3x+ (5x-4) =1
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