Question

what's the sum of 14 and a number is equal to 17

Answer 1

n - the number

14 + n = 17    |subtract 14 from both sides

n = 3

Answer 2

The sum (addition) of 14 and a number (x) is equal to (=) 17.

14 + n = 17   Subtract 14 from both sides
n = 3