Question

Solve and check. $$7 d-4 d=9$$

Name: Problem 92, Chapter 5: Prealgebra and Introductory Algebra
Uploaded: 2020-06-21T23:39:03-08:00
Duration: 1 min 1 s
Channel: Ethan Somes
Description: Solve and check. 7 d-4 d=9

   Solve and check.
$$7 d-4 d=9$$

Prealgebra and Introductory Algebra

Richard N. Aufmann,… 3rd Edition

Chapter 5, Problem 92

Instant Answer

Solved by Expert Ethan Somes

06/21/2020

Step 1

We have $7d - 4d$ which equals $3d$. Show more…

Show all steps

Thanks for your feedback!

Solve and check. $$7 d-4 d=9$$

Play audio

Feedback

Ethan Somes and 91 other subject Algebra educators are ready to help you.

Ask a new question

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Linear Equations

Linear equations are mathematical statements that involve a variable raised only to the first power. They are solved by isolating the variable using arithmetic operations, creating a balance between both sides of the equation.

Combining Like Terms

Combining like terms involves adding or subtracting coefficients of variables that are the same, which simplifies the expression. This step is crucial when dealing with equations that have multiple terms involving the same variable.

Verification of Solutions

Verifying solutions entails substituting the found value back into the original equation to ensure that it satisfies the equation. This process confirms the accuracy of the solution and helps identify any potential errors.

Please give Ace some feedback