Question 1066237
Let w be the width of the rectangle. Then the length would be w+15. So:
(w+3)(w+15-5)-w(w+15)=20
w²+13w+30-w²-15w=20
30-2w=20
w=5
The original rectangle was 5 x 20 cms., the new rectangle is 8 x 15 cms. &#9786;&#9786;&#9786;&#9786;