What must be subtracted from -3 to get -9?
Subtraction is a mathematical operation that helps us remove a certain quantity from a larger quantity.
Answer: 6 must be subtracted from -3 to get -9.
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.