/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q2. 2: The process of adding or subt... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 3: Q2. (page 149)

2: The process of adding or subtracting to remove a variable and simplify solving the system of equations is called (substitution, elimination).

Short Answer

Expert verified

The purpose of adding or subtracting to remove a variable and simplify solving the system of equations is called elimination.

Step by step solution

01

Step-1 – Taking an example to justify the statement

Let us consider the equations,

2x+3y=53x+2y=5

02

Step-2 –Multiplying the first equation by2 and second by 3

By doing the above operation, we have

4x+6y=109x+6y=15

03

Step-3 –Subtracting the two equations

4x-9y=10-15-5x=-5x=1

Substituting the value of x, we get

2x+3y=521+3y=52+3y=52+3y=53y=5-23y=3y=3

Therefore, we see that by using elimination we simplify the system of equation.

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.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Solve each system of equations.

9.

x+y+z=126x鈭�2y鈭�z=163x+4y+2z=28

Graph each system of equations and describe it as consistent and independent, consistent and dependent, or inconsistent.
4x鈭�2y=66x鈭�3y=9

Solve each system of equations.

x+y+z=鈭�12x+4y+z=1x+2y鈭�3z=鈭�3

Graph each system of inequalities. Name the coordinates of the vertices of the feasible region. Find the maximum and minimum values of the given function.

15. How many soccer balls and volleyballs should be made to maximize the profit?

Solve each equation. Check your solution.

68.4r+3-7=10
See all solutions

Recommended explanations on Math Textbooks

Statistics

Read Explanation

Applied Mathematics

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Probability and Statistics

Read Explanation

Decision Maths

Read Explanation

Mechanics Maths

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.