Question

form simultaneous equations and solved using only one method.
In the two digit number the unit digit is thrice the tens digit if 36 is added to the number the digits interchange their place find the number ​

Answer 1

Answer:

4

Step-by-step explanation:

12x+36=10{2x}+x

=12x+36=21x

=21x-12x-36

=9x=36

=4