8 times the sum of 5 times a number and 9

Discussion in 'Calculator Requests' started by math_celebrity, Mar 6, 2020.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    8 times the sum of 5 times a number and 9

    Take this algebraic expression in parts:

    The phrase a number means an arbitrary variable, let's call it x.

    5 times a number means:
    5x

    The sum of this and 9 means we add 9 to 5x:
    5x + 9

    Now we multiply 8 times this sum:
    8(5x + 9)
     
    math_celebrity, Mar 6, 2020
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