Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 2 - Solving Equations - 2-3 Solving Multi-Step Equations - Practice and Problem-Solving Exercises: 24

Answer

$c=2$

Work Step by Step

The quantity inside of the parenthesis is being multiplied by 2. Thus, we first divide by 2 to find that 8+4c=16. We need to get the c alone. Thus, we cancel out the addition by subtracting 8 on both sides. This leaves us with the equation 4c=8. In order to cancel out multiplication, we use division, so we divide both sides by 4 to get that c=2 We plug 2 in for c and confirm that our answer is, indeed, correct.
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