-3(3a-2b)-3(-a-b)=

Solution for -3(3a-2b)-3(-a-b)= equation:

Simplifying
-3(3a + -2b) + -3(-1a + -1b) = 0
(3a * -3 + -2b * -3) + -3(-1a + -1b) = 0
(-9a + 6b) + -3(-1a + -1b) = 0
-9a + 6b + (-1a * -3 + -1b * -3) = 0
-9a + 6b + (3a + 3b) = 0

Reorder the terms:
-9a + 3a + 6b + 3b = 0

Combine like terms: -9a + 3a = -6a
-6a + 6b + 3b = 0

Combine like terms: 6b + 3b = 9b
-6a + 9b = 0

Solving
-6a + 9b = 0

Solving for variable 'a'.

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

Add '-9b' to each side of the equation.
-6a + 9b + -9b = 0 + -9b

Combine like terms: 9b + -9b = 0
-6a + 0 = 0 + -9b
-6a = 0 + -9b
Remove the zero:
-6a = -9b

Divide each side by '-6'.
a = 1.5b

Simplifying
a = 1.5b