Question

3 less than a number is 17

Answer 1

20

Explanation:

17 is three less than something

that "something" is 3 more than 17

add 3 to 17

17+3= 20

Answer 2

`let \: unknown = x \\ then \\ x - 3 = 17 \\ x = 17 + 3 \\ x = 20 \\ thank \: you`