Question 1140961
x, time for new computer
2x, time for older computer


{{{1/x+1/(2x)=1/15}}}--------Question asked for x.  Solve!








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{{{2/(2x)+1/(2x)=1/15}}}

{{{3/(2x)=1/15}}}

{{{2x/3=15}}}

{{{x=(3/2)15}}}

{{{x=22&1/2}}}