Question

Let g = 3. evaluate 12 g⋅(9÷
g.

Answer 1

With g=3
Just replace every g with a 3.
So the equations becomes:
12g·(9÷g)=12(3)·(9÷(3))

This can also be written in the form:
$\frac{12(3)9}{3}$

Cancelling out the 3's:
12·9=108