To write as a fraction with a common denominator, multiply by .

To write as a fraction with a common denominator, multiply by .

Multiply and .

Multiply and .

Reorder the factors of .

Combine the numerators over the common denominator.

Factor out of .

Factor out of .

Factor out of .

Factor out of .

Apply the distributive property.

Multiply by .

Apply the distributive property.

Multiply by .

Subtract from .

Add and .

Simplify (4y)/(y-7)-(3y)/(y-3)