Chapter 5: Q. 11 (page 497)

In the following exercises, add or subtract the monomials.
$\begin{array}{l} (a) - 12 w + 18 w \\ (b) 7 x^{2} y - (- 12 x^{2} y) \end{array}$

Short Answer

Expert verified

The result is

\begin{array}{l} a) 6 w \\ b) 19 x^{2} y \end{array}

Step by step solution

Step 1. Given information

$\begin{array}{l} Thegivenexpressionsare \\ (a) - 12 w + 18 w \\ (b) 7 x^{2} y - (- 12 x^{2} y) \\ Wehavetoaddorsubtractthegivenexpressionsasapplicable. \end{array}$

Step 2. Solving part (a)

$\begin{array}{l} Considerthegivenexpression \\ \Rightarrow - 12 w + 18 w = (- 12 + 18) w \\ = 6 w \end{array}$

Step 2. Solving part (a)

$\begin{array}{l} Considerthegivenexpression \\ \Rightarrow 7 x^{2} y - (- 12 x^{2} y) = 7 x^{2} y + 12 x^{2} y \\ = (7 + 12) x^{2} y \\ = 19 x^{2} y \end{array}$

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.

In the following exercises, add or subtract the monomials.
$\begin{array}{l} (a) - 12 w + 18 w \\ (b) 7 x^{2} y - (- 12 x^{2} y) \end{array}$

Short Answer

Step by step solution

Step 1. Given information

Step 2. Solving part (a)

Step 2. Solving part (a)

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Theoretical and Mathematical Physics

Probability and Statistics

Logic and Functions

Applied Mathematics

Geometry

Mechanics Maths

Study anywhere. Anytime. Across all devices.

In the following exercises, add or subtract the monomials.(a)−12w+18w(b)7x2y−−12x2y

Short Answer

Step by step solution

Step 1. Given information

Step 2. Solving part (a)

Step 2. Solving part (a)

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Theoretical and Mathematical Physics

Probability and Statistics

Logic and Functions

Applied Mathematics

Geometry

Mechanics Maths

Study anywhere. Anytime. Across all devices.

In the following exercises, add or subtract the monomials.
$\begin{array}{l} (a) - 12 w + 18 w \\ (b) 7 x^{2} y - (- 12 x^{2} y) \end{array}$