Definition of dray. : a vehicle used to haul goods; especially : a strong cart or wagon without sides.
The main difference between an equation and a function is the fact that an equation usually deals with a single input, whereas, a function can have numerous inputs. In mathematics, an equation is used to denote the equality between two expressions.
A term is a constant or a variable in an expression. In the equation 12+3x+2x 2 =5x-1, the terms on the left are 12, 3x and 2x 2, while the terms on the right are 5x, and -1. Combining Like Terms is a process used to simplify an expression or an equation using addition and subtraction of the coefficients of terms.