Question

solve no.17 with steps

Answer 1

equation ban gayi solve yourself I just give answer

Answer 2

Let the ten's place be y and units place be x.
Therefore the two digit no =10y+x
Sum of digits =x+y
Difference of digits =x-y or y-x. (we do not know which one is greater)

Atp,

(X+y) 8=10y+x
Or, 8x+8y-10y-x=5
Or, 7x-2y=5......(i)

For difference between the digits,

Case 1:(x-y)16+3=10y+x
Or,15x-26y=-3.....(ii)

Case 2:(y-x)16+3=10y+x
Or, 6y-17x=-3.......(iii)

Solving (i) and (ii) we get,

(i) *13 and i-ii,

91x-26y=65
15x-26y=-3
___________
76x=68
Or,x=17/19

X=17/19 which is not possible since the digits have to be whole nos always and cannot be fraction .

By solving (i) and (III) we get,
(i) *3 and (ii) - (i)
6y-17x=-3
-6y+21x=15
__________
4x=12
Or, x=3
Therefore, y=(21-5)/2=8.
Therefore the no is 10*8+3=83.

Hope this help. Please Mark as brainliest and thumbs up