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17 December, 12:29

Solve the following system of equations by substitution.

y=2x

y=-2x+20

A. (10,-5)

B. (5,10)

C. (10,5)

D. (-10,5)

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Answers (2)
  1. 17 December, 13:12
    0
    The answer is B. (5,10)

    Step-by-step explanation:

    1. y = 2 (5)

    y = 10

    2. y = - 2 (5) + 20

    y = - 10+20

    y = 10
  2. 17 December, 14:12
    0
    The answer is b (5,10)
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