Question

One-third of a number when subtracted from double of itself is equal to 10. Find the number.

2x−x3=10

X=?

Answer 1

number is 6

Explanation:

let the number be x , then double the number is 2x and

2x -
`(1)/(3)` x = 10 ( multiply through by 3 to clear the fraction )

6x - x = 30

5x = 30 ( divide both sides by 5 )

x = 6

That is the number is 6