Question

the digit at the tens place of a two digit number is three times the digit at the unit place in the desert are reserved the new number will be 36 less than the original number.

Answer 1

let the ten's digit be x

units digit be y

x=3y

x-3y=0.....................1

10y+x=10x+y+36

9y-9x=36

/9

y-x=4......................2

add (1) & (2)

-2y=4

y=-2

x=3y

x=-6

The number is -62