Question

Please read the question carefully and select the best choice.(MARKS:1)
The tens digit of a two-digit number is two more than its unit digit. The two-digit number
is 7 times the sum of the digits. Find the unit digit?
hi​

Answer 1

Answer:

Y=2

Step-by-step explanation:

x=y+2_______1)

10x+y=(7x+7y)

3x-6y=0

x-2y=0

x=2y

putting value of x in equation 1

2y=y+2

y=2