Such as: 3x+5-1 and 5x+5=5-2
2006-09-08 10:45:16 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
An expression represents a number, while an equation represents a fact or relationship between the expressions on either side of the equality or inequality symbol.
For example, 5X = 10 is an equation because it tells you that "5X" (an expression representing an unknown value) is equal to "10" (another expression but this time of a known value). By solving this equation for X, you can determine the value of X, becuse the relationship between X and a known value is given.
Equations don't necessarily have to have an equals sign in them -- there are also inequality relationships. 5X + 12 > 3X + 3 is also an equation stating a relationship. It is stating the fact that "5X + 12" (an expression representing an unknown value) is greater than "3X + 3" (another expression representing a different unknown value). The equation tells you what the relationship between the expressions is.
2006-09-08 11:11:15 · answer #1 · answered by Mustela Frenata 5 · 0⤊ 0⤋
3x+5-1 is an expression (it has no equals in it)
5x+5=5-2 is an equation because it has an =
2006-09-08 10:47:23 · answer #2 · answered by Yukio Ichiro 2 · 0⤊ 0⤋
A mathematical expression is any expression that represents a numeric value. An equation is a mathematical statement, in symbols, that two things are the same.
2006-09-08 10:49:28 · answer #3 · answered by young_buck_gurl 2 · 0⤊ 0⤋
expressions are written and equations are formulated and worked to completion
2006-09-08 10:48:17 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Expression doesn't have to be correct, and EQUATION must be.
2006-09-08 10:48:46 · answer #5 · answered by bgavra989 2 · 0⤊ 0⤋