Question

the sum of the digit of a 2-digit number is 12 and the difference of their digit is 4 find the number if the tens digit is less than one digit​

Answer 1

Step-by-step explanation:

let the digit at tens place be x and digit at unit place be y

x + y = 12

x - y = 4

by using elimination method

2x = 16

x= 8

y = 4

hence the number is 84

Answer 2

Step-by-step explanation:

let 1 no be =x

other no is y

so A/q

x+y=12

x-y=-+4

2x=16

or2x=8

so x=8 or 4 ans