Question

Question 10(Multiple Choice Worth 1 points)

(01.02 MC)

Kelsey solved the following equation:

7x − one over two (8x + 2) = 6


Step Work Justification
1 7x − 4x − 1 = 6
2 3x − 1 = 6
3 3x = 7
4 x = 7 over 3


Which of the following has all of the correct justifications Kelsey used to solve this equation?
1. Distributive property 2. Combine like terms 3. Addition property of equality 4. Division property of equality
1. Multiplication property of equality 2. Combine like terms 3. Addition property of equality 4. Division property of equality
1. Distributive property 2. Combine like terms 3. Subtraction property of equality 4. Division property of equality
1. Multiplication property of equality 2. Combine like terms 3. Subtraction property of equality 4. Division property of equality

Answer 1

Answer: multiplication property of equality

Explanation:

did the test

Answer 2

The first one

Explanation:

She distributes 1/2 into the equation (8x-1). Then she combines like terms by combining the x variables. Lastly, to find x, she has to isolate it, so she uses the Addition Property of Equality and the Division Property of Equality to figure x out.