Twenty-five is the same as ten added to twice a number

Discussion in 'Calculator Requests' started by math_celebrity, Jan 20, 2024.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    The phrase a number means an arbitrary variable. We can pick any letter a-z except for i and e.

    Let's choose x.

    Twice a number means we multiply x by 2:

    ten added to twice a number
    2x + 10

    The phrase is the same as means equal to. Set 25 equal to 2x + 10 to get our algebraic expression
    25 = 2x + 10

    If the problem asks you to solve for x, type it in our math solver and get
    x = 7.5

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