Can someone help me on number 6?

Answer:
b=72
Step-by-step explanation:
1/3(b+6) = 1/4b+8
First, open the parentheses, which means multiplying both variables in the parentheses by 1/3.
1/3b+2 = 1/4b+8
Then, subtract 2 from both sides.
1/3b = 1/4b+6
Subtract 1/4b from both sides, but first change the fractions so that they have the same denominator.
4/12b = 3/12b+6
1/12b = 6
Finally, divide 1/12 on both sides which gives us b = 72