1/2a+2=-7

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


a in (-oo:+oo)

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

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

1/2*a+9 = 0 // - 9

1/2*a = -9 // : 1/2

a = -9/1/2

a = -18

a = -18

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