Question

please solve this in rough work class 8​

Answer 1

Step-by-step explanation:

let the number be = xy

sum of the no. =9

x + y = 9 ..........1

&

10x + y -27 = 10y +x

10x -x + y -10y = 27

9x - 9y = 27

x - y = 27/9

x - y = 3 .......2

from equation 1 & 2

x + y = 9

x - y = 3

2x = 12

x = 12/2

x = 6 ✓✓✓

PUT the Value of x in eq. 2

x - y = 3

6 - y = 3

-y = 3 -6

-y = -3

y = 3 ✓✓✓

therefore no .is xy = 63

hope it's helpful(•‿•)(•‿•)(•‿•)