Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - 1-8 An Introduction to Equations - Practice and Problem-Solving Exercises - Page 58: 66



Work Step by Step

Before finding the solution to all 4 equations, look at the equations to see if any appear to be unreasonable and determine whether that equation is false. Choice C seems to be unreasonable because you are adding two numbers that are greater than 50, but the given result is negative. Simplify the expression to determine whether C is true or false. 51−(−57)=?−6⟶ change subtraction to addition and reverse the sign 51+57=?−6⟶ add 108≠−6 X
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