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25 January, 20:08

Solve for x. - 0.65 + 0.45x = 5.4

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  1. 25 January, 23:04
    0
    x = 13.444 ... (repeating decimal) or;

    x = 13 4/9

    Step-by-step explanation:

    -0.65 + 0.45x = 5.4

    First we will add 0.65 to each 'side' of the equation.

    0.65 + (-0.65) + 0.45x = 0.65 + 5.4

    0.65 + (-0.65) = 0

    0.65 + 5.4 = 6.05

    Input the numbers, and now the equation looks like this:

    0 + 0.45x = 6.05

    Remove the zero:

    0.45x = 6.05

    Divide each 'side' by 0.45.

    0.45x : 0.45 = 6.05 : 0.45

    0.45x : 0.45 = 1x = x

    6.05 : 0.45 = 13.444 ... repeating decimal

    Input the numbers, and now the equation looks like this:

    x = 13.444 ... repeating decimal

    We can also write this as:

    x = 13 4/9 in fraction form
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