The measures of the angles in a triangle add up to 180 degrees. Make the angles add up to 180 in an equation and solve for x.
(x + 8) + (3x - 12) + (2x - 8) = 180
Combine like terms.
6x - 12 = 180
Add 12 to both sides.
6x = 192
Divide both sides by 6.
x = 32
C) 32 is your answer.
