<PRE><B>Question 315972</B>


{{{r/14-r/35=1/14}}} Start with the given equation.



{{{70(r/cross(14)-r/cross(35))=70(1/cross(14))}}} Multiply both sides by the LCD {{{70}}} to clear any fractions.



{{{5r-2r=5}}} Distribute and multiply.



{{{3r=5}}} Combine like terms on the left side.



{{{r=(5)/(3)}}} Divide both sides by {{{3}}} to isolate {{{r}}}.



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Answer:


So the solution is {{{r=5/3}}} which approximates to {{{r=1.667}}}. 
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