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Answer:
[tex]a=3\frac{1}{3}[/tex]
Step-by-step explanation:
[tex]a+5\frac{2}{3} =9[/tex]
[tex]a+5\frac{2}{3}-5\frac{2}{3}=9-5\frac{2}{3}[/tex]
[tex]a=3\frac{1}{3}[/tex]