Question

The sum of a number and 35 is 100 create an equation

Answer 1

You can do any letter you want so let's say the sum of a number is n then u add 35 so it will be n+35 equals 100
n+35=100

Answer 2

Let's called this number x and sum it with 35

x+35

We know this sum is equal to 100, let's equal it.

x+35=100

$\boxed { x+35=100 }$