Question

when 5 is subtracted from length abd breadth of the rectangle the perimeter becomes 26 what is mathametical form of the statement​

Answer 1

$2(l-5 +b-5)=26$

$2l-10+2b-10=26$

$2(l+b)=26+20$

$l+b=\frac{46}{2}$

$l+b=23$

Answer 2

perimeter of rectangle= 2(l+b)

26=2(l-5+b-5)

26/2 = l+b-10

13+10=l+b

23=l+b

letx=l

y=b

x+y=23

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