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x in (-oo:+oo)
(1/4)^8-(7*x) = 32 // - 32
(1/4)^8-(7*x)-32 = 0
(1/4)^8-7*x-32 = 0
-7*x-2097151/65536 = 0 // + 2097151/65536
-7*x = 2097151/65536 // : -7
x = 2097151/65536/(-7)
x = -299593/65536
x = -299593/65536
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