(1)/(3)(21-3a)=6-1

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Solution for (1)/(3)(21-3a)=6-1 equation: 


a in (-oo:+oo)

(1/3)*(21-(3*a)) = 6-1 // - 6-1

(1/3)*(21-(3*a))-6+1 = 0

(1/3)*(21-3*a)-6+1 = 0

1/3*(21-3*a)-6+1 = 0

1/3*(21-3*a)-6+1 = 0

1-a+1 = 0

2-a = 0

2-a = 0

2-a = 0 // - 2

-a = -2 // * -1

a = 2

a = 2

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