Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 1 - Section 1.8 - Introduction to Variables, Algebraic Expressions, and Equations - Exercise Set - Page 81: 5


$a+b=57\\ a-b=55\\ a*b=56\\ a/b=56$

Work Step by Step

$56+1=57\\ 56-1=55\\ 56*1=56\\ 56/1=56$
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