1+1/2a+7a=107/2

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Solution for 1+1/2a+7a=107/2 equation: 


a in (-oo:+oo)

(1/2)*a+7*a+1 = 107/2 // - 107/2

(1/2)*a+7*a-(107/2)+1 = 0

(1/2)*a+7*a-107/2+1 = 0

15/2*a-105/2 = 0 // + 105/2

15/2*a = 105/2 // : 15/2

a = 105/2/15/2

a = 7

a = 7

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