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x in (-oo:+oo)
1/64 = 16^6*x-7 // - 16^6*x-7
1/64-(16^6*x)+7 = 0
449/64-16777216*x = 0 // - 449/64
-16777216*x = -449/64 // : -16777216
x = -449/64/(-16777216)
x = 449/1073741824
x = 449/1073741824
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