For this case we have the following equation:
[tex]18=\frac{b}{3}+3[/tex]
We want to leave the variable "b", so we follow the steps below:
1st step:
We subtract 3 from both sides of the equation:
[tex]18-3=\frac{b}{3}+3-3[/tex]
[tex]15=\frac{b}{3}[/tex]
2nd step:
We multiply by 3 on both sides of the equation:
[tex]15*3=\frac{b}{3}*3\\45=b[/tex]
Thus, the value of the variable "b" is given by 45.
Answer:
[tex]b = 45[/tex]
