so number 6 is a supplementary angle, which means the angles add up to 180 degrees. So what you want to do is add the two x values, 14x and 8x, together. Then you're going to make an equation like so ---- 22x + 4 = 180. Then you solve like a regular equation. ( hint : the answer for x is 8, so that means angle NOP is 68 degrees.) :)
