Question 116082
{{{9x + 3y - (5x + y)=9x + 3y - 5x - y}}} Distributive property.
{{{9x + 3y - (5x + y)=(9x-5x) + (3y - y)}}}Group like terms. 
{{{9x + 3y - (5x + y)=4x + 2y}}}simplify.