The translation: (x, y) → (x - 7, y - 4) was performed on a triangle. How many units should the x-values move?

x-7 represents x moved 7 units to the left.

Step-by-step explanation:

The translation: (x, y) → (x - 7, y - 4) was performed on a triangle

x is translated into x-7. 7 is subtracted from x. It means x is moved 7 units to the left

y is translated into y-4. 4 is subtracted from y. It means y is moved 4 units down.

So x-7 represents x moved 7 units to the left.