Expression or an Equation

6x³  is 

• an expression

• an equation

• an identity

• a formula

27=5x+3 is 

• an expression

• an equation

• an identity

• a formula

10a + 5b is 

• an expression

• an equation

• an identity

• a formula

2N + 5 is 

• an expression

• an equation

• an identity

• a formula

5x - 3 = 15 is 

• an expression

• an equation

• an identity

• a formula

 3x - 2 is 

• an expression

• an equation

• an identity

• a formula

12x³ = 12 is

• an expression

• an equation

• an identity

• a formula

 N + 4 = 4 + N is 

• an expression

• an equation

• an identity

• a formula

A mathematical phrase involving at least one variable and sometimes numbers and operation symbols.

• Variable

• Algebraic Expression

• Constant

• Coefficient

Terms in an algebraic expression that have the same variable raised to the same power. Only the coefficients of like terms are different. 

• variable

• like terms

• product

• constant