Question

If we subderact 4 from the digit
at the units place of a two
digit number and add 4 to
the digit at the tens place
then the resulting number is
doubled the number.​find the number

Answer 1

Answer:

36

Step-by-step explanation:

let the number in tens place be x

let the number in units place be y

the number we need is 10x + y

adding 4 to the number in tens place

x + 4

subtract 4 from the number in unit place

y - 4

the result number is double

10(x + 4) + ( y - 4) = 2(10x + y)

10x + 40 + y - 4 = 20x + 2y

10x + y + 36 = 20x +2y

20x + 2y - (10x + y) = 36

20x + 2y - 10x - y = 36

10x + y = 36

therefore we get the number required

36

hope you get your answer