Answer:
Step-by-step explanation:
it will always be true as long as it is adittion the r is the unknown number just add 15 plus what equals 25
Perimeter
2l + 2w = 27
l + w = 13.5
Area
l*w = 35
(35 / l) + l = 13.5
35 + l^2 = 13.5l
l^2 - 13.5l + 35 = 0
Using this equation, we can find the length first
then width can be found