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2 September, 16:27

What is the solution to 4 (x-7) = 0.3 (x+2) + 2.11

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  1. 2 September, 18:15
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    Expand

    4x - 28 = 0.3x + 0.6 + 2.11

    Simplify 0.3x + 0.6 + 2.11 to 0.3x + 2.71

    4x - 28 = 0.3x + 2.71

    Add 28 to both sides

    4x = 0.3x + 2.71 + 28

    Simplify 0.3x + 2.71 + 28 to 0.3x + 30.71

    4x = 0.3x + 30.71

    Subtract 0.3x from both sides

    4x - 0.3x = 30.71

    Simplify 4x - 0.3x to 3.7x

    3.7x = 30.71

    Divide both sides by 3.7

    x = 30.71/3.7

    Simplify 30.71/3.7 to 8.3

    x = 8.3
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