Rule

Addition Property of Equality

The Addition Property of Equality states that adding the same number to each side of an equation yields an equivalent equation.

a=ba+c=b+ca = b \quad \Leftrightarrow \quad a + c = b + c

This property can be used when solving equations to eliminate a subtraction, since addition is the inverse operation of subtraction.

Addition Property of Equality Rules 1.svg

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