Question

if the length of a rectange is decreased by 3 units and breadth is increased by 4 units then area will be 9sq. represent this situation as a linear equation in two variables
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Answer 1

Explanation:

Let l be the length and b be the breadth

Given : (l-5)(b+3) = l×b-8 , this is simplified as, 3l - 5b = 7 .........................(1)

Given: (l-3)(b+2) = lb+67, this is simplified as, 2l-3b = 73 .............................(2)

By solving (1) and (2), we get l = 344 and b = 205

Answer 2

Answer:

Let l be the length and b be the breadth

Given : (l-5)(b+3) = l×b-8 , this is simplified as, 3l - 5b = 7 .............(1)

Given: (l-3)(b+2) = lb+67, this is simplified as, 2l-3b = 73 ..............(2)

By solving (1) and (2), we get l = 344 and b = 205

Explanation: