Solving and Justifying Solutions to Equations

Which property of real numbers justifies the work shown from Step 1 to Step 2?

• Distributive Property

• Commutative Property

• Identity Property

• Associative Property

Taylor correctly solved an equation and got 3x = 3x as his answer. What type of solution does this equation have?

• One Solution

• No Solution

• Infinite Solutions

Brian correctly solved an equation and got 8 = -11 as his answer. What type of solution does this equation have?

• One Solution

• No Solution

• Infinite Solutions

Sally correctly solved an equation and got w = 15 as her answer. What type of solution does this equation have?

• One Solution

• No Solution

• Infinite Solutions

Which justification would be used for STEP 2?

• Addition Property of Equality

• Subtraction Property of Equality

• Multiplication Property of Equality

• Division Property of Equality

• Simplify

• The justification for step 2 is correct.

• The justification for step 2 is incorrect and should be distributive property.

• The justification for step 3 is correct.

• The justification for step 3 is incorrect and should be addition property of equality.

• The justification for step 4 is correct.