Answer
x = 4
Work Step by Step
-2x+7=5x-21
subtract 5x from both sides
7-7x=-21
subtract 7 from both sides
-7x=-28
divide both sides by -7
-28/-7 = 4
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 6.2 - Equations with Variables in Both Members - Exercises - Page 240: 5
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