First subtract 10 from both sides:
37 -10 = 6x + 10 -10
27 = 6x
Then divide both sides by 6
27 ÷ 6 = 6x ÷ 6
9/2 or 4.5 = x
Answer:
∠B = 17°
Step-by-step explanation:
Vertical angles are congruent, thus
5x + 7 = x + 15 ( subtract x from both sides )
4x + 7 = 15 ( subtract 7 from both sides )
4x = 8 ( divide both sides by 4 )
x = 2
Hence
∠B = 5x + 7 = (5 × 2) + 7 = 10 + 2 = 17°
It's the third one. It is the correct option.
