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Yesterday, 17:06

Solve the equation. Check for extraneous solutions.

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  1. Yesterday, 17:15
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    2 (7-7x) = 2x + 4

    14 - 14x = 2x + 4

    16x = 10

    x = 10/16

    x = 0.625

    2[ - (7-7x) ] = 2x + 4

    -14 + 14x = 2x + 4

    12x = 18

    x = 18/12

    x = 1.5

    answer:

    solutions x = 0.625 and x = 1.5
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