Question 1179618
{{{system(d=L+2,d=2w+5)}}}


Better if have equation in just one variable.
{{{system(L=d-2,w=(d-5)/2)}}}



The description is enough to find a right triangle, diagonal being hypotenuse.

{{{d^2=(d-2)^2+((d-5)/2)^2}}}-----simplify and solve this....