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inverse. || with variables. || 2 x n. || number on the line. || doesn't apply. || represent something unknown. || expression. || absolute value but different signs are called opposites. || a property. ||
 * **Term** || **Lesson** || **Definition** ||
 * **Absolute Value** || 1-3 || how far is the number from zero. ||
 * **Additive Inverse** || 1-4 || - and positive are called additive
 * **Algebra** || 1-2 || Math that involves expressions
 * **Algebraic Expression** || 1-2 || an expression using a variable
 * **Coordinate** || 1-3 || The number that matches with a
 * **Counterexample** || 1-2 || Conjecture is false and proprety
 * **Define A Variable** || 1-7 || Assigning a variable to
 * **Equation** || 1-7 || A mathematical sentence. ||
 * **Evaluate** || 1-2 || to find the value of something ||
 * **Inequality** || 1-3 || A number contains < > ||
 * **Integer** || 1-3 || - and + numbers. ||
 * **Inverse Operations** || 1-9 || Addition and subtraction. ||
 * **Negative Number** || 1-3 || A number less than zero. ||
 * **Numerical Expression** || 1-2 || Variables with only numbers and
 * **Opposites** || 1-4 || two numbers with the same
 * **Order of Operations** || 1-2 || (p) e2 x / + - ||
 * **Powers** || 1-2 || Exponents are called powers ||
 * **Solution** || 1-9 || the value of a variable. ||
 * **Solve** || 1-9 || Finding the value of the variable. ||
 * **Variable** || 1-2 || A symbol or letter that represents