Identify all the components of this statement: 3a + 2b = 7

Question

Is this an equation or an expression and why?

constant
variable
term
expression
equation

I believe it is an equation because it has an equal sign

I believe the constant is 7 because that never changes

I'm not sure about the other terms, variable, term, and expression.

Please help. Thank you.

Answer 1

Terms are separated by + and - signs. In this case, the terms are 3a, 2b, 7.

Variables are usually letters or names whose value can be set or calculated. In this case, a and b are the variables.

An expressions is any set of terms and operators. In this case, the expressions are

3a, 2b, 3a+2b and 7.

Answer 2

Is it correct, then, that 7 is the constant and the entire thing is the equation?

Answer 3

3 , 2 , and 7 are constants