2-a/-3=9

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Solution for 2-a/-3=9 equation: 


a in (-oo:+oo)

2-(a/(-3)) = 9 // - 9

2-(a/(-3))-9 = 0

1/3*a-7 = 0 // + 7

1/3*a = 7 // : 1/3

a = 7/1/3

a = 21

a = 21

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