what number added to -70 had a sum of zero
The number that needs to be added to -70 to obtain a sum of zero is 70.
To find the number that, when added to -70, gives a sum of zero, you need to solve the equation:
-70 + x = 0
To isolate x on one side of the equation, you can add 70 to both sides:
-70 + x + 70 = 0 + 70
Simplifying this equation gives you:
x = 70
So, the number that, when added to -70, gives a sum of zero is 70.
To find the number that, when added to -70, results in a sum of zero, we can set up an equation.
Let's call the unknown number "x". We can write the equation as:
-70 + x = 0
To solve for "x," we need to isolate it on one side of the equation. Here's how we can do that:
First, let's move -70 to the other side by adding 70 to both sides of the equation:
-70 + 70 + x = 0 + 70
This simplifies to:
x = 70
Therefore, the number that, when added to -70, has a sum of zero is 70.