Answer: 12
Step-by-step explanation:
[tex]\frac{b}{3}+16=20[/tex]
Subtract 16
[tex]\frac{b}{3}=20-16[/tex]
[tex]\frac{b}{3}=4[/tex]
Multiply by 3
[tex]b=4*3[/tex]
[tex]b=12[/tex]
