Answer :
[tex]b-9+6b=30 \\\\ 7b=30+9 \\\\ 7b=39 \\\\ \boxed{b=\frac{39}{7}}[/tex]
b - 9 + 6b = 30 :First, combine like terms
7b - 9 = 30 :Then, add the 9 over to the other side
7b = 39 :Then, divide the whole equation by 7
b = 5.57
Your final answer:
b = 5.57
or
b = 39/7
7b - 9 = 30 :Then, add the 9 over to the other side
7b = 39 :Then, divide the whole equation by 7
b = 5.57
Your final answer:
b = 5.57
or
b = 39/7