Addition Property of Equality - If you add the same number to each side of an equation, the two sides remain the same. , Subtraction Property of Equality - If you subtract the same number to each side of an equation, the two sides remain equal., Multiplication Property of Equality - If you multiply each side of an equation by the same nonzero, the two sides remain equal., Division Property of Equality - If you divide each side of an equation by the same nonzero number, the two sides remain equal., Equal sign - A symbol of equality =., Equation - A mathematical sentence showing two expressions are equal. An equation contains and equals sign, =., Expressions - A combination of numbers, variables, and at least one operation., Inverse operations - Operations which undo each other., Solution - The value of a variable that makes and equation true., Solve - To replace a variable with a value that results in a true sentence.,

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