Question

a two digit number is 4 times the sum of its digits. if 18 is added to the number,the digit are reversed. find the number​

Answer 1

Solution in the attachment....hope it helped...

Answer 2

Answer: -24

Step-by-step explanation:

10x+y= 4(x+y)

10x+ y = 4x+4y

6x-3y=0

2x-y=0. (1)

10x+y+18=10y+x

9x-9y+18=0

x-y =2 (2)

Subtract 2 from 1

x=-2

Put the value of x in 1

-4-y= 0

y = -4

Number is 10x+y = 10(-2)+(-4)=-24