Question

If a number is doubled and then increasa30 the result is five less then three times number find the number

Answer 1

8

Explanation:

Let n represent the number.

2n+3 . . . . "doubled, then increased by 30"

3n -5 . . . . "five less than three times the number"

These two results are equal, so we have ...

2n +3 = 3n -5

8 = n . . . . . . . . . . add 5-2n

The number is 8.