Answer
The number is -13.
Work Step by Step
"The sum of six and twice a number" translates to 6 + 2x.
"seven less than the number" translates to x - 7.
The equation is written:
6 + 2x = x - 7
Solve for x:
6 + x = -7
x = -13
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 2 - Review - Page 182: 91
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