Answer
x = -128
Work Step by Step
1000(x + 40) = 100(16 + 7x)
Distribute:
1000x + 40,000 = 1600 + 700x
Subtract 700x from both sides:
300x + 40,000 = 1600
Subtract 40,000 from both sides:
300x = -38,400
Divide both sides by 300:
x = -128
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 - Section 2.3 - Further Solving Linear Equations - Exercise Set - Page 121: 88
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