Combine and .

Subtract from both sides of the equation.

Multiply both sides of the equation by .

Simplify the left side.

Cancel the common factor of .

Move the leading negative in into the numerator.

Factor out of .

Cancel the common factor.

Rewrite the expression.

Multiply.

Multiply by .

Multiply by .

Simplify .

Apply the distributive property.

Multiply.

Multiply by .

Multiply by .

Reorder and .

Solve for y 4x-1/3y=12