Question

If four times a number is increased by 15 the result is three less than six times the number find the number

Answer 1

9

Explanation:

Let the number be n.

Then: 4n + 15 = 6n - 3

Subtract 4n from both sides, obtaining: 15 = 2n - 3

Now add 3 to both sides, obtaining 18 = 2n. Then n = 9.