If 6x-6x-6x-3=7740 then find x\x
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6* – 6x-3 = 7740
» 6* – 6* = 7740
6* (1 - 1 / 216 ) = 7740
6 × 215 / 216 = 7740
6* = 7740 X 216 / 215
» 6* = 36 x 216
+ 6* = 65 x=5
: x* = 55 = = 3125
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