Answer
$$c=28.5$$
Work Step by Step
$$\frac{2}{3}(c-18)=7$$ $$\frac{2}{3}c-\frac{36}{3}=7$$ $$\frac{2}{3}c-12=7$$ $$\frac{2}{3}c=19$$ $$2c=57$$ $$c=28.5$$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 2 - Solving Equations - 2-3 Solving Multi-Step Equations - Practice and Problem-Solving Exercises - Page 98: 46
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