/*! 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} Q12. Solve each system by the method ... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 2: Q12. (page 69)

Solve each system by the method of addition or subtraction.

3x鈥�2y=11

3x鈥�y=7

Short Answer

Expert verified

The solution of given system of equations is x = 1,y = 鈥�4.

Step by step solution

01

Step 1. Description of step.

Subtract 3x-2y=11from 3x-y=7and simplify to find the value of y.

(3x鈥�y)鈥�(3x鈥�2y)=7鈥�11

y=鈥�4

02

Step 2. Description of step.

Substitute 鈥� 4 for into 3x-y=7and simplify.

3x鈥�(鈥�4)=7

3x=3

03

Step 3. Description of step.

Divide each side of the equation obtained in step 2 by 3 to find the value of x.

3x3=33

x=1

Therefore, the solution of given system of equations is x = 1,y = 鈥�4.

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

Tell whether each statement is true or false. Then write the converse and tell whether it is true or false.

a2>9if a>3.

State the hypothesis and the conclusion of each conditional.

If , then is a right angle.

Justify each step.

3a2=653a=125a=45

It is known that has a supplement, but 鈭�HOKcan鈥檛 have a complement. Name one possible measure for 鈭�HOK.

Mention what can be deduced from the given information.

Given: AE=DEand CE=BE
See all solutions

Recommended explanations on Math Textbooks

Calculus

Read Explanation

Pure Maths

Read Explanation

Logic and Functions

Read Explanation

Mechanics Maths

Read Explanation

Decision Maths

Read Explanation

Discrete Mathematics

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.