5a/2-21/2=-3

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Solution for 5a/2-21/2=-3 equation: 


a in (-oo:+oo)

(5*a)/2-(21/2) = -3 // + 3

(5*a)/2-(21/2)+3 = 0

(5*a)/2-21/2+3 = 0

5/2*a-15/2 = 0 // + 15/2

5/2*a = 15/2 // : 5/2

a = 15/2/5/2

a = 3

a = 3

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