Since is on the right side of the equation, switch the sides so it is on the left side of the equation.

Add and .

Add to both sides of the equation.

Add and .

Add to both sides of the equation.

Add and .

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Cancel the common factor of and .

Factor out of .

Cancel the common factors.

Factor out of .

Cancel the common factor.

Rewrite the expression.

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Mixed Number Form:

Solve for a 9-5a=8a+a-7