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12 November, 08:01

0.3 (4-x) = x-1.4 how do you solve this problem?

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  1. 12 November, 08:14
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    x = 2.

    Step-by-step explanation:

    Solve for x:

    0.3 (4 - x) = x - 1.4

    Expand out terms of the left hand side:

    1.2 - 0.3 x = x - 1.4

    Subtract x from both sides:

    1.2 + (-0.3 x - x) = (x - x) - 1.4

    -0.3 x - x = - 1.3 x:

    -1.3 x + 1.2 = (x - x) - 1.4

    x - x = 0:

    1.2 - 1.3 x = - 1.4

    Subtract 1.2' from both sides:

    (1.2 - 1.2) - 1.3 x = - 1.2 - 1.4

    1.2 - 1.2 = 0:

    -1.3 x = - 1.2 - 1.4

    -1.2 - 1.4 = - 2.6:

    -1.3 x = - 2.6

    Divide both sides of - 1.3 x = - 2.6 by - 1.3:

    (-1.3 x) / (-1.3) = (-2.6) / (-1.3)

    (-1.3) / (-1.3) = 1:

    x = (-2.6) / (-1.3)

    (-2.6) / (-1.3) = 2.:

    Answer: x = 2.
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