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OpenStudy (pengy120):
Jade had the following system of equations to help her with a physics problem, but she only needed to know what the sum of x and y is. 2x+3y=12 2x-y=4 What is the value of x+y? A. -5 B. -1 C. 1 D. 5
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OpenStudy (anonymous):
take the second equation of 2x-y=4 and set it equal to positive y
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