Question

the sum of two digit number is 8 if 36 is added to this number the digit are reversed find the number

Answer 1

X+y=8+36
Xy=44 hope its help you

Answer 2

let the two digit number be x and y
sum =10x+y
given sum=10x+y=8--------(1)
10x+y+36=10y+x
9x+36=9y
9x-9y=-36
9(x-y) =-36
(x-y) =-4-------------(2)

putting the value you will get the answer
from second equation
x=-4+y
you just have to put this value

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