1/2a-15=a

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Solution for 1/2a-15=a equation: 


a in (-oo:+oo)

(1/2)*a-15 = a // - a

(1/2)*a-a-15 = 0

-1/2*a-15 = 0 // + 15

-1/2*a = 15 // : -1/2

a = 15/(-1/2)

a = -30

a = -30

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