1/2a+2.5=18

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Solution for 1/2a+2.5=18 equation: 


a in (-oo:+oo)

(1/2)*a+2.5 = 18 // - 18

(1/2)*a-18+2.5 = 0

1/2*a-15.5 = 0 // + 15.5

1/2*a = 15.5 // : 1/2

a = 15.5/1/2

a = 31

a = 31

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