,

Replace the variable with in the expression.

Rewrite as .

Factor out of .

Factor out of .

Factor out of .

Cancel the common factors.

Factor out of .

Cancel the common factor.

Rewrite the expression.

Add and .

Add and .

Multiply by .

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Mixed Number Form:

Evaluate x=0 , (3x+15)/(6-x)