Question 1152787


Area, {{{A = L*W}}}

Width {{{W=6}}}

Length, {{{L=A-40 }}}


then

{{{A = (A-40 )*6}}}


{{{A = 6A-240 }}}


{{{240 = 6A-A}}}

{{{240 = 5A}}}

{{{A = 240/5 }}}

{{{A = 48 }}}


and, the length is {{{L=48-40=8 }}}