What is the differences and similarities between equations and expressions?

Answer 1

Expressions are:

General little statements that DO NOT have an equal sign:

2x-4

2m^3+5

Seven less than half a number squared

Twice the difference of a number and five.

Equations are:

Any statement that DOES have an equals sign(or equivalent):

4n+7=11

1/2 b-2=3

Twice a number increased by four is ten

The difference of a number and two is five

Equations and expressions are similar because they both have a value.

Equations and expressions are different because a equation is on sentence, and an expression is a phrase. An equation has a relation symbol, and a equation has no relation symbol.

Example for equation:

1. 10 is five less than a number.

10=x-5.

2. A number is less than five.

x<5.

Example for expression:

1. A number less than five.

x.

2. Five less than a number.

x-5.