Explanation Given information: The provided system of equation: a + b = 7 2 a − 8 = b The provided ordered pair ( 5 , 2 ) Consider the ordered pair ( 5 , 2 ) and the system of equation as below: a + b = 7 2 a − 8 = b Since, it says to use the alphabetical order of variables, then the values of x and y from the ordered pair ( 5 , 2 ) are as below: a = 5 , b = 2 Substitute the value a = 5 , b = 2 in the equation a + b = 7 and check as below: a + b = 7 ( 5 ) + ( 2 ) = 7 7 = 7 The equation is true, then ( 5 , 2 )

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ISBN: 9780321848741

Author: Marvin L. Bittinger

Publisher: PEARSON

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Chapter 8.1, Problem 14ES

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Whether the ordered pair (5,2) is a solution of the system of equation a+b=7,2a−8=b with the help of the alphabetical order of variables.

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Chapter 8.1, Problem 13ES

Chapter 8.1, Problem 15ES

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Elementary and Intermediate Algebra

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Whether the ordered pair ( 5 , 2 ) is a solution of the system of equation a + b = 7 , 2 a − 8 = b with the help of the alphabetical order of variables.

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Whether the ordered pair (5,2) is a solution of the system of equation a+b=7,2a−8=b with the help of the alphabetical order of variables.

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