,

Subtract from both sides of the equation.

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Simplify each term.

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.

Divide by .

Rewrite the equation as .

Subtract from both sides of the equation.

Create a graph to locate the intersection of the equations. The intersection of the system of equations is the solution.

Solve by Graphing 9x-3y=18 , 3x=y+6