,

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Simplify each term.

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 .

Divide by .

The solution is the set of ordered pairs that make true.

Solve by Graphing y=3x+2 , 3y=9x+6