3a-(9-5)=21/21

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Solution for 3a-(9-5)=21/21 equation:


a in (-oo:+oo)

3*a-9+5 = 21/21 // - 21/21

3*a-(21/21)-9+5 = 0

3*a-9-1+5 = 0

3*a-5 = 0 // + 5

3*a = 5 // : 3

a = 5/3

a = 5/3

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