kierraaaaa
Answered

Welcome to Westonci.ca, where curiosity meets expertise. Ask any question and receive fast, accurate answers from our knowledgeable community. Explore a wealth of knowledge from professionals across different disciplines on our comprehensive platform. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

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!

Visit us again for up-to-date and reliable answers. We're always ready to assist you with your informational needs. Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Get the answers you need at Westonci.ca. Stay informed with our latest expert advice.