Question 575426
Let the length = {{{L}}}
Let the width = {{{W}}}
given:
(1) {{{ L = W + 2 }}}
(2) {{{ ( W - 3 )*( L + 4 ) = W*L }}}
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Substitute (1) into (2)
(2) {{{ ( W - 3 )*( W + 2 + 4 ) = W*( W + 2 )  }}}
(2) {{{ ( W - 3 )*( W + 6 ) = W^2 + 2W }}}
(2) {{{ W^2 - 3W + 6W - 18 = W^2 + 2W }}}
(2) {{{ 3W - 18 = 2W }}}
(2) {{{ W = 18 }}}
(2) {{{ W = 18 }}}
and, since
{{{ L = W + 2 }}}
{{{ L = 18 + 2 }}}
{{{ L = 20 }}}
The original dimensions are 18x20 m2