-4=a-1/2

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Solution for -4=a-1/2 equation: 


a in (-oo:+oo)

-4 = a-(1/2) // - a-(1/2)

1/2-a-4 = 0

-a-7/2 = 0 // + 7/2

-a = 7/2 // * -1

a = -7/2

a = -7/2

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