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21 August, 12:08

Simplify the following expression, 4.2x+4.7=18.6

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  1. 21 August, 13:08
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    Step-by-step explanation:

    4.2x+4.7=18.6

    Multiple each term by 10

    42x + 47 = 186

    Collecting like terms

    42x = 186 - 47

    42x = 139

    x = 139/42

    x = 3 13/42 or 3.3
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