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.
Both make use of numbers and variables, however, the difference lies in their arrangement. This article will highlight the differences between the expression and equation and make it easier for you to pick up an equation from an expression. While an equation is a sentence, an expression is a phrase. For example, âTen is five less than a numberâ is an equation that can be represented by a formula. 10= x-5. On the other hand, a number less than five is a phrase, and hence an expression. If you are given an expression A+2A, you cannot make out anything unless you know the value of the variable A. So, while A+2A is just an expression, A+2A=3A becomes and equation.