Answer
$-\frac{93}{10}$
Work Step by Step
LCD is 10.
$-10+\frac{7}{10}=\frac{-10}{1}+\frac{7}{10}=\frac{-10\times10}{1\times10}+\frac{7}{10}=\frac{-100}{10}+\frac{7}{100}=\frac{-100+7}{10}=\frac{-93}{10}$
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