6th Edition

ISBN: 9780134506470

Author: Pirnot

Publisher: PEARSON

Concept explainers

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.

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Textbook Question

Chapter 6.2, Problem 85E

In Exercises 85–88, substitute a value for x to make the statement true. You don’t need algebra to do these exercises—just use your common sense and knowledge of working with signed numbers.

( − 6 − ( − 3 ) ) ⋅ ( − 12 + x 7 − 5 ) = − 12

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Chapter 6.2, Problem 84E

Chapter 6.2, Problem 86E

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Chapter 6 Solutions

Mathematics All Around (6th Edition)

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In Exercises 85 – 88 , substitute a value for x to make the statement true. You don’t need algebra to do these exercises—just use your common sense and knowledge of working with signed numbers. ( − 6 − ( − 3 ) ) ⋅ ( − 12 + x 7 − 5 ) = − 12

Solution Summary: The author explains how to substitute a value of x to make the given statement true. The opposite of the integer which we need to subtract is to be added.

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Chapter 6 Solutions