2+1/2(a-1)-1

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Solution for 2+1/2(a-1)-1 equation: 


a in (-oo:+oo)

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

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

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

1/2*a-3/2+2 = 0

1/2*a+1/2 = 0

1/2*a+1/2 = 0

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

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

a = -1/2/1/2

a = -1

a = -1

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