Which property of equality is shown below?If: −78n=2Then: −78n−(−27)=2−(−27)Choices:(A) Addition Property of Equality(B) Subtraction Property of Equality(C) Multiplication Property of Equality(D) Division Property of Equality
Q. Which property of equality is shown below?If: −78n=2Then: −78n−(−27)=2−(−27)Choices:(A) Addition Property of Equality(B) Subtraction Property of Equality(C) Multiplication Property of Equality(D) Division Property of Equality
Identify Operation: Identify the operation performed on both sides of the equation.The given equations are:If: −78n=2Then: −78n−(−27)=2−(−27)We need to determine which operation is applied to both sides of the original equation.
Analyze Change: Analyze the change from the original equation to the new equation.The original equation is −78n=2. In the new equation, (−27) is subtracted from both sides of the original equation. However, subtracting a negative is the same as adding the positive value of that number. Therefore, we are effectively adding 27 to both sides of the equation.
Determine Property: Determine the property of equality used.Since we are adding 27 to both sides of the equation, the property of equality that is being used is the Addition Property of Equality.