a two digit number is obtained by either multiplying the sum of the digits by 8 and then subtracting 5 or by multiplying the difference of the digits by 16 and then adding 3.Find the number.

Question

parthkohli · Answer

It looks like you have a system to solve eh

parthkohli · Answer

Let one digit be x and another one by y.

parthkohli · Answer

$\Rightarrow 8(x + y) - 5 = 10x + y $
$\Rightarrow 16(x - y) + 3  = 10x + y $
Can you solve this one?

parthkohli · Answer

Maybe, or you can try wolfram ;)

parthkohli · Answer

I am not sure... I'd be going in some time

anonymous · Answer

@apoorvk

anonymous · Answer

cn u solve it

apoorvk · Answer

@Parvathysubhash 9th grade - you should be able to do this stuff -_-

Try once atleast :)
Combine the like terms and you will have two linear equations to solve and enjoy! ;)

anonymous · Answer

dt
i knww yaarr
cn u jst show it

anonymous · Answer

8(x+y)-5=10x+y ----------------- (1)
16(x-y)+3=10x+y ___________________(2)

(1) gives 8x+8y-5=10x+y
(2)gives 16x-16y+3=10x+y
after dt wht will we do @apoorvk

apoorvk · Answer

okay bring over the terms on the RHS to the left and simplify the whole thing.

anonymous · Answer

(1)- -2x-7y-5
(2)- 6x+17y+3

anonymous · Answer

nthng i dnt need d answer ok

apoorvk · Answer

there's a slight mistake:
should read:
-2x+7y-5 = 0
6x-17y+3 = 0


Now solve these two^