Add to both sides of the equation.

Divide each term in by and simplify.

Divide each term in by .

Simplify the left side.

Cancel the common factor of .

Cancel the common factor.

Divide by .

Simplify the right side.

Divide by .

Replace all occurrences of in with .

Simplify the left side.

Simplify .

Simplify each term.

Apply the distributive property.

Combine and .

Multiply .

Multiply and .

Multiply by .

Combine and .

Move to the left of .

Combine the opposite terms in .

Subtract from .

Add and .

Remove any equations from the system that are always true.

Solve the System of Equations 3x-4y=12 1/3x-4/9y=4/3