-a/2=-2

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Solution for -a/2=-2 equation: 


a in (-oo:+oo)

-a/2 = -2 // + 2

2-a/2 = 0

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

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

a = -2/(-1/2)

a = 4

a = 4

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