the sum of 14 and a number is equal to 17
I assume that the question is: what is this nunber?we write this like this: The sum of 14 and a number is 14+xwe know that this equals 17, so: 14+x=17. Let's substract 14 from both sides: x=17-14x=3so the number is 3.
Sum = +14 + n = 17n+14=17Subtract 14 from both sides.n+14−14=17−14n=3