Question 1033107
{{{system((n-1)/d=2/3,n/(d+5)=1/2)}}}


The system appears like rational equations but .....


{{{system(n-1=2d/3,2n=d+5)}}}, with a little help from Multiplication Property of Equality.   How to go further is up to you.



{{{system(3n-3=2d,2n-d=5)}}}


{{{system(3n-2d=3,2n-d=5)}}}


Multiplying second equation by {{{-2}}} gives {{{system(3n-2d=3,-4n+2d=-10)}}} allowing now easy use of Elimination Method (setup now for it).


{{{highlight_green((3n-2d)+(-4n+2d)=3+(-10))}}}----------You finish this...