−2x−6=3x-21 3x−21 plzz help i have to solve for x

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.

What is always true when two whole numbers are subtracted?