Question

write the mathematical formula of the following statement using two variable.When 5 is subtracted from length and breadth of the rectangle, the perimeter becomes 30

Answer 1

Answer:

Step-by-step explanation:

Let l be length and b be breadth of rectangle.

Then,

2(l-5+b-5)=30

2(l+b-10)=30

2(l+b)-20=30

2(l+b)=50

l+b=25