Explanation 1) Approach: By the definition of the subtraction, for ‘ a ’ and ‘ b ’ are two integers. Then, a − b = a + ( − b ) . For subtracting an integer from an integer the opposite of the integer which we need to subtract is to be added. Product of two integers is followed by multiplication of the number with condition of their signs. If both integers have same sign, the result is positive. If both integers are in different signs then the result is negative. 2) Calculation: Given, ( 3 + 9 x − 2 ) ( 12 + ( − 4 ) 7 − ( + 9 ) ) = 16 … ( 1 ) Add, the opposite of − 2 with x and the opposite of 9 with 7. ( 3 + 9 x + ( − 2 ) ) ⋅ ( 12 + ( − 4 ) 7 + ( − 9 ) ) = 16 ( 12 x + ( − 2 ) ) ⋅ ( 12 + ( − 4 ) 7 + ( − 9 ) ) = 16 Now, Subtract 12 with 4 and the result 8 and subtract 9 from 7 and the result − 2 . ( 12 x + ( − 2 ) ) . ( 8 − 2 ) = 16 ( 12 x + ( − 2 ) ) ⋅ ( − 4 ) = 16 Divide by ( − 4 ) on both Sides, ( 12 x + ( − 2 ) ) ⋅ ( − 4 ) ( − 4 ) = 16 ( − 4 ) 12 x + ( − 2 ) = − 4 Multiply ( x + ( − 2 ) ) on both sides, 12 x + ( − 2 ) ⋅ ( x + ( − 2 ) )</

MYLAB MATH WITH PEARSON ETEXT FOR MATHEM

6th Edition

ISBN: 9780136470137

Author: Pirnot

Publisher: PEARSON

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Percentage

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

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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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Chapter 6.2, Problem 88E

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Whether the substitute a Value of x to make the given statement true.

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Chapter 6.2, Problem 87E

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MYLAB MATH WITH PEARSON ETEXT FOR MATHEM

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To check: Whether the substitute a Value of x to make the given statement true.

Solution Summary: The author explains how to substitute a value of x to make the given statement true.