Question

If the difference of a number and four is doubled, the result is 4 less than the number. Find the number.

Answer 1

the number is 4

Explanation:

Let us assume the number be n

given that

n - 4

Now it is doubled i.e. 2(n -4)

So, the equation is

2(n - 4) = n - 4

2n - 8 = n - 4

n = 4

hence, the number is 4