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Pre-Algebra
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OpenStudy (anonymous):
-3/10+a=2/5
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OpenStudy (anonymous):
Solving for a?
OpenStudy (anonymous):
\[\color{green}{a = \dfrac{2}{5} + \dfrac{3}{10} = \dfrac{4+3}{10}} = \dfrac{7}{10}}\]
OpenStudy (anonymous):
3/10 + 2/5 = 3/10 + 4/10, etc
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