Simplify

7x-4y-8-3x-8y+12

To simplify, combine like terms by adding or subtracting coefficients:

7x - 4y - 8 - 3x - 8y + 12

(7x - 3x) + (-4y - 8y) + (-8 + 12)

4x - 12y + 4

To simplify the expression 7x - 4y - 8 - 3x - 8y + 12, you can combine like terms.

First, combine the x terms:
7x - 3x = 4x

Next, combine the y terms:
-4y - 8y = -12y

Now, combine the constants:
-8 + 12 = 4

The simplified expression is:
4x - 12y + 4