Definition and Example
algebraic expression: An expression that
contains at least one variable.
x + 8
4(m - b)
A value that does not change.
Example - 3, 0, p
equation: A mathematical sentence that
shows that two expressions are equivalent.
x + 4 = 7
6 + 1 = 10 - 3
solution of an equation
solution of an equation: A value or values that make an equation true.
Equation: x + 2 = 6
Solution: x = 4
Variable: A symbol used to represent a quantity that can change.
In the expression 2x + 3, x is the variable.