Answer
not equivalent
Work Step by Step
$45\leq-5+z$ : add 5 to both sides
$45+5\leq-5+z+5$ : simplify
$50\leq z$
This is not equivalent to $40\leq z$.
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 3 - Solving Inequalities - 3-2 Solving Inequalities Using Addition or Subtraction - Practice and Problem-Solving Exercises - Page 175: 48
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