Question

The tens digit of a two digit number is 7 more than the units digit the sum of the digits is 1 by 9 of the number find the number​

Answer 1

Answer:

81

Step-by-step explanation:

let the unit digit be X

so tens digit is X+7

therefore the no. is 10X+70+X

11X+70

also

X+X+7=X/9

2X+7=11X+70/9

18X+63=11X+70

18X-11X=70-63

7X=7

So, X=1

and the number

11X+70

11×1+70

11+70

81

Answer 2

Step-by-step explanation:

hope this answer is helpful to you.