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16 June, 13:01

Which equation has exactly one solution? *

A) 3 (x + 1) = 3x + 2

B) 3 (x + 1) = 3x + 3

C) 3x = x + 2x

D) 3x = x + 2

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Answers (1)
  1. 16 June, 13:23
    0
    D; 3x = x + 2

    Step-by-step explanation:

    3x = x + 2 subtract x from both sides

    2x = 2 divide 2 from both sided

    x = 1
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