x-(-2 and 4/5)=3 and 7/10

\(x-(-2\frac{4}{5})=3\frac{7}{10}\)

 

\(x+2\frac{4}{5}=3\frac{7}{10}\)

 

\(x+\frac{14}{5}=\frac{37}{10}\)

 

\(x=\frac{37}{10}-\frac{14}{5}\)

 

\(x=\frac{37}{10}-\frac{28}{10}\)

 

\(x=\frac{9}{10}\)

 

\(x=0.9\)

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