Definition of dray. : a vehicle used to haul goods; especially : a strong cart or wagon without sides.
Expressions versus Equations. A difference between expressions and equations is what each represents. An expression shows a math relationship. One key to an expression is that there is no solution. An expression does not have an answer. An expression, however, can be evaluated. To evaluate an expression, substitute values for the variables.
Expression - Phrase, Equation - Sentence. If you've searched the topic equation vs. expression on the net & found this page, you will probably read the following four items as mostly the same. Ten is five less than a number. A number is less than five. a number less than five.