Antoinette solves the linear equation 3 (x-3) + 2x+9 - 2x + 2 (x-1) using the steps shown below.

Step 1: 3x-3+2x+9 - 2x + 2x-1

Step 2: 5x+6 - 4x-1

Step 3: 5x-4--1-6

Step 4: X=-7

She checks her solution by substituting - 7 for x in the original equation. She determines that her answer is incorrect. Which best

describes Antoinette's error?

She distributed incorrectly.

She incorrectly combined like terms.

She incorrectly applied the addition and subtraction properties of equality.

She incorrectly applied the multiplication and division properties of equality.

Question

Guest

Mathematics

19 June, 11:01

Antoinette solves the linear equation 3 (x-3) + 2x+9 - 2x + 2 (x-1) using the steps shown below.

Step 1: 3x-3+2x+9 - 2x + 2x-1

Step 2: 5x+6 - 4x-1

Step 3: 5x-4--1-6

Step 4: X=-7

She checks her solution by substituting - 7 for x in the original equation. She determines that her answer is incorrect. Which best

describes Antoinette's error?

She distributed incorrectly.

She incorrectly combined like terms.

She incorrectly applied the addition and subtraction properties of equality.

She incorrectly applied the multiplication and division properties of equality.

+3

Answers (2)

Know the Answer?

Wizard · Answer 1

A. She distributed incorrectly

Step-by-step explanation:

I hate it when the wrong answers get more votes than the the right. This IS the correct answer. I just took it on edge and used someone else's answer and got it wrong. I checked it and it was A the first one. Therefore, its A.

Walter Calderon · Answer 2

Step-by-step explanation:

3 (x - 3) + 2x + 9 - 2x + 2 (x - 1)

3x - 9 + 2x + 9 - 2x + 2x - 2

Solving like terms

5x - 2

5x = 2

x = 2 / 5

I think she incorrectly applied the multiplication and division properties of equality