4=-1/2x - solution

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Solution for 4=-1/2x equation:

x in (-oo:+oo)

4 = (-1/2)*x // - (-1/2)*x

4-((-1/2)*x) = 0

(1/2)*x+4 = 0

1/2*x+4 = 0 // - 4

1/2*x = -4 // : 1/2

x = -4/1/2

x = -8

x = -8

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