What must be subtracted from -3 to get -9?

Solution:

Subtraction is a mathematical operation that helps us remove a certain quantity from a larger quantity.

We can always subtract an integer from a given integer and the result is again an integer.

Let us subtract 'x' from -3 to get -9. Let us now write this as an equation as:

-3 - x = -9

or, -3 - x + 3 = -9 + 3 (Adding 3 to both sides of the equation)

or, -x = -6

or, x = 6

Therefore, 6 must be subtracted from -3 to get -9.

What must be subtracted from -3 to get -9?

Summary:

6 must be subtracted from -3 to get -9.