Question 1116548
----
∠A and ∠B\angle B∠B are vertical angles. If m∠A=(x+12)∘\angle A=(x+12)^{\circ}∠A=(x+12)
​∘
​​ and m∠B=(2x+8)∘\angle B=(2x+8)^{\circ}∠B=(2x+8)
​∘
​​, then find the measure of ∠B\angle B∠B. 
----


If you are saying that measure of angle A is x+12 degrees and measure of angle B is 2x+8 degrees, and that these two angles are vertical angles, then:


Vertical Angles Are Congruent
and
{{{x+12=2x+8}}}, which you easily solve.