v21’s Twitter Archive—№ 65,037

@keefstuart angles are equal, so we know that: 100 - (x/2) = x + 31 (subtract 31 from both sides) 69 - (x/2) = x (add x/2 to both sides) 69 = x + x/2 (which is also) 69 = x * 1.5 (divide both sides by 1.5) 46 = x