/*! 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} Q32 Find the value of the variable.3... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Q32 (page 10)

Find the value of the variable.

3u+u鈭�2=10

Short Answer

Expert verified

The value of the variable is u=3.

Step by step solution

01

Step 1. Combine the like terms.

First remove all the brackets and combine the like terms 3u and u.

3u+u鈭�2=103u+u鈭�2=104u鈭�2=10

02

Step 2. Add 2.

To find the value of variable u in the equation 4u鈭�2=10, add 2 on both sides of the equation.

4u鈭�2+2=10+24u=12

03

Step 3. Divide by 4.

Divide both sides of the equation4u=12 by 4 and cancel the common factors of 4 on both sides.

4u4=124u=4脳34u=3

04

Step 4. Verify the value.

In order to verify the value of u, substitute 3 for u into the equation 3u+u鈭�2=10.

3脳3+3鈭�2=109+1=1010=10True

Hence, the value of the variable is u=3.

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

Suppose Pat spoke a line l joining F and T while you thought of a line n joining F and T. Is it better to say that l and n are two different lines, or to say that we have one line with two different names?

Classify each statement as true or false.

R and S contain D.

Sketch and label the figures described. Use dashes for hidden parts.

Three planes intersect in a point.

Draw two points P, Q on a sheet of paper. Fold the paper so that fold line f contain both P, Q. Unfold the paper. Now fold so that P falls on Q. Call the second fold g. Lay the paper flat and label the intersection of f and g as X. How are points P, Q and X? Explain.

Compare the areas of the red and blue regions. (Area of circle = .)
See all solutions

Recommended explanations on Math Textbooks

Geometry

Read Explanation

Mechanics Maths

Read Explanation

Probability and Statistics

Read Explanation

Discrete Mathematics

Read Explanation

Statistics

Read Explanation

Decision 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.