Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 7 - Test - Page 562: 20

Answer

This equation has no solution.

Work Step by Step

$\frac{a}{a - 3}$ = $\frac{3}{a - 3}$ - $\frac{3}{2}$ Subtracting $\frac{3}{a - 3}$ from both sides, we get $\frac{a}{a - 3}$ - $\frac{3}{a - 3}$ = $\frac{3}{a - 3}$ - $\frac{3}{2}$ - $\frac{3}{a - 3}$. On the left hand side, the denominators are equal, and thus we can directly subtract the numerators. Thus, $\frac{a - 3}{a - 3}$ = -$\frac{3}{2}$ ...(Since $\frac{3}{a - 3}$ - $\frac{3}{a - 3}$ = 0). $\frac{a - 3}{a - 3}$ = -$\frac{3}{2}$ But, $\frac{a - 3}{a - 3}$ = 1, and 1 $\ne$ -$\frac{3}{2}$. Thus this equation has no solution.
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