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26 September, 08:06

What is the value of the expression 3x-9=45?

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  1. 26 September, 08:26
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    18

    Step-by-step explanation:

    To work out the value of x we can do 3x-9=45

    we can add 9 on both sides so 3x=54

    then we can divide by 3

    Thats 18
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