Question

How do I find the values of B using the numbers I have here?

Answer 1

29

Explanation:

5b - 21 + x = 180

x + b+45 + 50 = 180

x = 85 - b

(substitute value)
5b-21 + 85 - b = 180

4b = 180+21-85

4b = 116

b = 116/4

b = 29