Help please!!!!!
Geometry

Answer:
<B = 47
Step-by-step explanation:
(5x+7) = (3x+23)
5x+7 = 3x+23
2x+7 = 23
2x = 16
2x/2 = 16/2
x = 8
<B = 3x+23
<B = 3(8)+23
<B = 24 + 23
<B = 47