Question 1019907
Use the Pythagorean theorem,
{{{7^2+N^2=(N+1)^2}}}
{{{7^2+N^2=N^2+2N+1}}}
{{{49=2N+1}}}
{{{2N=48}}}
{{{N=24}}}
{{{N+1=25}}}
7-24-25