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14 February, 17:18

How many solutions does 0.75 (x+40) = 0.35 (x+20) + 0.35 (x+20) have?

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  1. 14 February, 17:20
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    0.75 (x + 40) = 0.35 (x + 20) + 0.35 (x + 20)

    is the answer d
  2. 14 February, 17:37
    0
    Only one because there is one variable and the combined coefficients of x are non-zero.

    (0.75 (x+40) = 0.70 (x+20), 0.05x=14-30=-16, x=-320)
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