y is the sum of twice a number and 3

Discussion in 'Calculator Requests' started by math_celebrity, Jan 26, 2022.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    y is the sum of twice a number and 3

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

    twice a number means we multiply x by 2:
    2x

    the sum of twice a number and 3:
    2x + 3

    The word is means equal to, so we set 2x + 3 equal to y
    y = 2x + 3
     

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