Answer
$4 - x$
Work Step by Step
We can call our unknown number $x$.
A difference means a subtraction, so the difference between $4$ and $x$ can be written as:
$4 - x$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 6 - Section 6.5 - Translating Words into Algebraic Symbols - Exercises - Page 248: 10
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