#### Answer

$-\dfrac{1}{9}$

#### Work Step by Step

Make the fractions similar using their LCD, which is $9$:
$=\dfrac{2(3)}{3(3)}+\left(-\dfrac{7}{9}\right)
\\=\dfrac{6}{9}+\left(-\dfrac{7}{9}\right)
\\=\dfrac{6-7}{9}
\\=-\dfrac{1}{9}$

Published by
Brooks Cole

ISBN 10:
1285199197

ISBN 13:
978-1-28519-919-1

$-\dfrac{1}{9}$

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