3a-3b-4a+4b=

Solution for 3a-3b-4a+4b= equation:

Simplifying
3a + -3b + -4a + 4b = 0

Reorder the terms:
3a + -4a + -3b + 4b = 0

Combine like terms: 3a + -4a = -1a
-1a + -3b + 4b = 0

Combine like terms: -3b + 4b = 1b
-1a + 1b = 0

Solving
-1a + 1b = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-1b' to each side of the equation.
-1a + 1b + -1b = 0 + -1b

Combine like terms: 1b + -1b = 0
-1a + 0 = 0 + -1b
-1a = 0 + -1b
Remove the zero:
-1a = -1b

Divide each side by '-1'.
a = b

Simplifying
a = b