Hello Joseph George sir..you have answered my previous question but i have a doubt in it

(l-1)(b+4).. this you simplify and abswer me my answer is lb+4l-b-4 and yours is lb+4l+b-4..plz clear it sir

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Posted by Joseph Georgeabout 2 hours ago

(l+3)(b-4) = lb - 67
lb - 4l + 3b - 12 = lb - 67
-4l + 3b = -55
it can also be written as
4l-3b = 55 ---(1)

(l-1)(b+4) = lb + 89
lb +4l - b +4 = lb +89
4l - b = 85 ---(2)

subtracting 2 from 1

4l - 4l -3b +b = 55 - 85
-2b = -30
b = 15

putting this in 1

4l - 3(15) = 55
4l - 45 = 55
4l = 100
l= 25

lenght = 25 m
bredth = 15 m..see this was the solution sir and i want to ask that (l-1)(b+4) openings means how to open it ..my ans is coming as-4 but here +4.plz clear itttt

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Q. Sir please contact me at my landline no. '01414069306' I want to understand a concept which I am not being able to understand through this portal. Sir I have my pre-boards tomorrow. Please sir I request you to contact me. Please sir.

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Greetings Happy teachers day Sir!!

Sir .when I read the theory in chemistry there is not much questions asked in it

Is there any book for chemistry that has questions to work out to test my knowledge

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Hello Joseph George sir..you have answered my previous question but i have a doubt in it (l-1)(b+4).. this you simplify and abswer me my answer is lb+4l-b-4 and yours is lb+4l+b-4..plz clear it sir

Dear student please provide previous solution of joseph george sir solution. I cant see previous solution

Hello Joseph George sir..you have answered my previous question but i have a doubt in it

(l-1)(b+4).. this you simplify and abswer me my answer is lb+4l-b-4 and yours is lb+4l+b-4..plz clear it sir

Dear student
please provide previous solution of joseph george sir solution.
I cant see previous solution