Answer
$280
Work Step by Step
Let $g$ represent the friend's guitar.
$2g+40=600$
To get the variable on its own, subtract 40 from each side.
$2g=560$
Divide each side by 2.
$g=280$
The price of the friend's guitar was $280
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 2 - Solving Equations - Mid-Chapter Quiz - Page 117: 15
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