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1 November, 15:34

Use the substitution method to solve the system of equations. Choose the correct ordered pair. y = 5x + 7 x = 8 A. (8, 47) B. (0, 7) C. (8, 15) D. (0, 8)

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  1. 1 November, 15:42
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    Assuming the system is composed of the equations y = 5x+7 and x = 8, then the answer is (8,47) which is choice A

    To get this answer, we simply replace x in the first equation with 8, and then compute

    y = 5x+7

    y = 5*8+7 ... replace x with 8

    y = 40+7

    y = 47

    So together x = 8 and y = 47 pair up to get us the solution (x, y) = (8,47)
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