Three angles have measures that add up to 180° they had the following angle measures M angle ABC equals X -6° and then we have M angle CBD equals 4X -14° and then we have M degrees DBE equals 5X what is the equation to solve for X would it be 10 X -20° equals 180° or would it be 9X -20° equals 180° or X -20° equals 180° or 10 X +20° equals 180°