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13 May, 06:21

For which equation is 7 a solution?

A) 3x + 1 = 27

B) 3 (x + 1) = 24

C) 2x + 3 (x-4) = 21

D) x2 - 8 = 42

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Answers (1)
  1. 13 May, 09:19
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    It is b because you have to add then multiply
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