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 - Chapter Review - Page 69: 13


The difference of r and 31.

Work Step by Step

Two things are being subtracted, so we say the phrase "the difference of" and then list the things being subtracted. Note, we list the r first since the expression is r-31, not 31-r.
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