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

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Solution for (1/2)1-x=4 equation:

x in (-oo:+oo)

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

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

1/2-x-4 = 0

-x-7/2 = 0 // + 7/2

-x = 7/2 // * -1

x = -7/2

x = -7/2

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