It says that the total degree of WXZ is 105º. If m∠2 is two times m∠1, that means that there are three total parts. You divide 105º by 3 and you get 35º. Therefore your answer is 35º
For simplicity, let the measure of angle 1 be represented by α. Then the measure of angle 2 is 2 times that, or 2α. Those two angles together total the measure of angle WXZ, which is 105°.
α +2α = 105°
3α = 105° . . . . . . . . . . collect terms
α = 105°/3 = 35° . . . . divide by the coefficient of α
