4+1/2a=1 - solution

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

a in (-oo:+oo)

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

(1/2)*a-1+4 = 0

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

1/2*a = -3 // : 1/2

a = -3/1/2

a = -6

a = -6

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