[tex]x-\ width\\
(3x-7)\ -\ length\\\\
Formula \ for\ area\ of\ rectangle:\\Area=2length+2width\\\\
66=2x+2(3x-7)\\
66=2x+6x-14\\
66=8x-14\ \ \ |Add\ 14\\
80=8x\ \ \ |Divide\ by\ 8\\
x=10\\
3x-7=3*10-7=30-7=23\\\\Dimensions:\\
length: 23yd\\
width:10yd.[/tex]
