SOLUTION: if n is a positive integer,then (6*10^-n)+(1*10^-n) must equal?

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Question 199085: if n is a positive integer,then (6*10^-n)+(1*10^-n) must equal?
Found 2 solutions by jim_thompson5910, RAY100:
Answer by jim_thompson5910(35256) About Me  (Show Source):
Answer by RAY100(1637) About Me  (Show Source):
You can put this solution on YOUR website!
6*10^-n + 1* 10^-n
.
6 / 10^n + 1/ 10^n = 7/10^n = 7*10^-n