Question 975472
The length of a rectangle is k less less than the width.  Perimeter is p.  Find dimensions.


w for width
L for length
p for perimeter
k a number used in the description relating w and L.
Unknown variables are w and L.


{{{system(L=w-k,2w+2L=p)}}}


You can take advantage of the even number value for the perimeter and just use the given values right-away.


{{{system(w+L=49,L=w-3)}}}


{{{w+w-3=49}}}
{{{2w=46}}}
{{{highlight(w=23)}}}