Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - 1-8 An Introduction to Equations - Practice and Problem-Solving Exercises: 32

Answer

$x=7$

Work Step by Step

$2-x=-5$ Using mental math, subtract 2 from each side of the equation. The result is: $-x=-7$ Again using mental math, we know that the sign on each side of the equation needs to be reversed to give us the value of x. $x=7$
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