a + b + c = 180 for b

Discussion in 'Calculator Requests' started by math_celebrity, Apr 14, 2019.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    a + b + c = 180 for b

    We have a literal equation. Subtract (a + c) from each side of the equation to isolate b:
    a + b + c - (a + c) = 180 - (a + c)

    The (a + c) cancels on the left side, so we have:
    b = 180 - (a + c)

    or, distributing the negative sign:

    b = 180 - a - c
     

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