First you multiply 3 x 1000 which is 3,000. Then you too 2 x 100 which is 200. Lastly you subtract 3000 from 200 and you get 2800.
X = <span>width
2x-3 = </span><span>length
</span>

width = 6.5 m
length = 2x-3 = 2*6.5 - 3 = 10 m
I’m sorry I can’t help ypu