Key Terms
- compound inequality
- A compound inequality is made up of two inequalities connected by the word “and” or the word “or.”
- conditional equation
- An equation that is true for one or more values of the variable and false for all other values of the variable is a conditional equation.
- contradiction
- An equation that is false for all values of the variable is called a contradiction. A contradiction has no solution.
- identity
- An equation that is true for any value of the variable is called an Identity. The solution of an identity is all real numbers.
- linear equation
- A linear equation is an equation in one variable that can be written, where a and b are real numbers and as
- solution of an equation
- A solution of an equation is a value of a variable that makes a true statement when substituted into the equation.