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5 April, 06:06

Solve - 7+4 (1-5x) = x+39

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  1. 5 April, 07:07
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    -7 + 4 (-5x + 1) = x + 39

    -7 + 4 (-5x) + 4 (1) = x + 39

    -7 - 20x + 4 = x + 39

    -20x - 7 + 4 = x + 39

    -20x - 3 = x + 39

    + 20x + 20x

    -3 = 21x + 39

    - 39 - 39

    -42 = 21x

    21 21

    -2 = x
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