Answer
x=57
Work Step by Step
Multiply both sides by 3
x-21=36
move constant to the right
x=36+21
add the numbers
x=57
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 6 - Review - Page 263: 3
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