SOLUTION: {{{ (1/2^n)+(3/2^3)+(5/2^n-3)-(82/2^n+1) }}} i have the answer which is {{{ 3/8 }}} but how do i get i only got 1 step ahead, and i don't mean the n i mean the the equation equals

Algebra ->  Equations -> SOLUTION: {{{ (1/2^n)+(3/2^3)+(5/2^n-3)-(82/2^n+1) }}} i have the answer which is {{{ 3/8 }}} but how do i get i only got 1 step ahead, and i don't mean the n i mean the the equation equals       Log On


   

Question 1057188: +%281%2F2%5En%29%2B%283%2F2%5E3%29%2B%285%2F2%5En-3%29-%2882%2F2%5En%2B1%29+ i have the answer which is +3%2F8+ but how do i get i only got 1 step ahead, and i don't mean the n i mean the the equation equals 3/8 but not the n, so how do i get the equation to 3/8
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
.
+%281%2F2%5En%29%2B%283%2F2%5E3%29%2B%285%2F2%5En-3%29-%2882%2F2%5En%2B1%29+ i have the answer which is +3%2F8+ but how do i get i only got 1 step ahead,
and i don't mean the n i mean the the equation equals 3/8 but not the n, so how do i get the equation to 3/8
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1%2F2%5En + 5%2F2%5E%28n-3%29 - 82%2F2%5E%28n%2B1%29 = 1%2F2%5En + %285%2A8%29%2F2%5En - 41%2F2%5En = %281+%2B+40+-41%29%2F2%5En = 0.