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26 March, 07:12

Which ordered pair in the form (x, y) is a solution of this equation? 3x-4y=21

A) (-2,-3)

B) (0,7)

C) (7,0)

D) (-3, - 2)

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Answers (1)
  1. 26 March, 08:36
    0
    It should be C. If you input the X value of 7 into the equation it comes out as 21. Then input 0 to the y, this gives you 0. This leaves you with 21. Which makes the equation true.
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