Chapter 3: Q23. (page 202)

Solve each equation.
$0 = 21 + 3 x$

Short Answer

Expert verified

The required solution is represented by $x = - 7$ .

Step by step solution

Step 1. Determine the method which can be used to determine the required solution.

The equation that represents the value of x will represent the required solution.

Step 2. Determine the value of x.

Perform subtraction of 21 on both sides of the provided equation.

$- 21 = 21 + 3 x - 21 - 21 = 3 x$

Perform division of 3 on both sides of the equation.

$\begin{matrix} \frac{- 21}{3} = \frac{3 x}{3} \\ - 7 = x \\ x = - 7 \end{matrix}$

Step 3. Write the conclusion.

The obtained equation $x = - 7$ is the required solution.

Unlock Step-by-Step Solutions & Ace Your Exams!

Full Textbook Solutions
Get detailed explanations and key concepts
Unlimited Al creation
Al flashcards, explanations, exams and more...
Ads-free access
To over 500 millions flashcards
Money-back guarantee
We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Solve each equation.
$0 = 21 + 3 x$

Short Answer

Step by step solution

Step 1. Determine the method which can be used to determine the required solution.

Step 2. Determine the value of x.

Step 3. Write the conclusion.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Calculus

Logic and Functions

Geometry

Pure Maths

Theoretical and Mathematical Physics

Mechanics Maths

Study anywhere. Anytime. Across all devices.

Solve each equation.0=21+3x

Short Answer

Step by step solution

Step 1. Determine the method which can be used to determine the required solution.

Step 2. Determine the value of x.

Step 3. Write the conclusion.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Calculus

Logic and Functions

Geometry

Pure Maths

Theoretical and Mathematical Physics

Mechanics Maths

Study anywhere. Anytime. Across all devices.

Solve each equation.
$0 = 21 + 3 x$