Answer:
b = 5/12
Step-by-step explanation:
1. Cross multiply -> 1 x 5 = 5 and 3b x 4 = 12 b
2. Simplify -> 5 = 12b and switch sides so it's easier: 12b = 5
3. Divide both sides by 12 -> 12b ÷ 12 = b and 5 ÷ 12 = 5/12
4. So, the answer is b = 5/12
Hope this helps! :)
Use symbolab, it's very helpful
