Question

The sum of the digits of a two-digit number

is 11. If 9 is subtracted from the number, the

digits interchange their places. Find the

number.​

Answer 1

Answer:

MY ANSWER IS 65 because 65 - 9 = 56

Step-by-step explanation:

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Answer 2

Answer:

let two number X and Y

X+Y=11

A.T.Q

if the digits get interchanged=10y+X

so,10Y+X=11-63

10Y+X=-52

.......................................

first equation is=X+Y=11

second equation is=10Y+X

=10(X+Y=11)

subtraction

10X+10Y=110

(-)10Y+(-)X=(-)-52

10X-X=52+110

9X=162

X=162/9

X=18

........................................

X+Y=11

=18+Y=11

Y=11-18

Y= -7

..........................................

Step-by-step explanation: