Answer:
B = 15
Explanation:
Combine multiplied terms into a single fraction
6 + 2b/5 = 12
Subtract 6 from both sides
6 + 2b/5 (-6) = 12 (-6) = 2b/5 = 6
Multiply all terms by the same value to eliminate fraction denominators
2b/5 ( x 5) = 6 (x 5)
Simplify
2b = 30