kierraaaaa
Answered

Welcome to Westonci.ca, your go-to destination for finding answers to all your questions. Join our expert community today! Explore thousands of questions and answers from a knowledgeable community of experts ready to help you find solutions. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

Carolyn was asked to solve the following system of equations. Her work is shown.

What error did Carolyn make? Identify her mistake and explain the error.


1. Carolyn did not subtract 4 from both sides of the equation.

2. Carolyn did not distribute the -2 to both terms

3. Carolyn did not substitute x + 2 for y

4. Carolyn did not substitute 3 for x to find the value of y for the solution

Carolyn Was Asked To Solve The Following System Of Equations Her Work Is ShownWhat Error Did Carolyn Make Identify Her Mistake And Explain The Error1 Carolyn Di class=

Sagot :

theleangreenbean

Answer:

Carolyn did not distribute the -2 to both terms

Step-by-step explanation:

This was how Carolyn solved the second step:

[tex]3x-2(x+2)=7\\3x-2x+4=7[/tex]

She did multiply both terms in the parentheses by 2, but she did not change the sign for the 4. It should instead be -4 since a negative number multiplied by a positive number will always make a negative number.

Here is the correct way of solving it:

[tex]3x-2(x+2)=7\\3x-2x-4=7[/tex]

I hope this helps!

We appreciate your time. Please come back anytime for the latest information and answers to your questions. Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.