EquationsAn equation is a statement of equality of two algebraic expressions involving one or more variables.
Example: x = 5 is an equation having 1 variable 2x + 3y = 7 is an equation having 2 variables
These three are NOT equations as they are not equated to any other quantity. These are just algebraic expressions.
The value(s) of the variable that satisfies the equation is known as its root/s or solution/s.