3(6a-3)+(3a-6)=

Solution for 3(6a-3)+(3a-6)= equation:

Simplifying
3(6a + -3) + (3a + -6) = 0

Reorder the terms:
3(-3 + 6a) + (3a + -6) = 0
(-3 * 3 + 6a * 3) + (3a + -6) = 0
(-9 + 18a) + (3a + -6) = 0

Reorder the terms:
-9 + 18a + (-6 + 3a) = 0

Remove parenthesis around (-6 + 3a)
-9 + 18a + -6 + 3a = 0

Reorder the terms:
-9 + -6 + 18a + 3a = 0

Combine like terms: -9 + -6 = -15
-15 + 18a + 3a = 0

Combine like terms: 18a + 3a = 21a
-15 + 21a = 0

Solving
-15 + 21a = 0

Solving for variable 'a'.

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

Add '15' to each side of the equation.
-15 + 15 + 21a = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 21a = 0 + 15
21a = 0 + 15

Combine like terms: 0 + 15 = 15
21a = 15

Divide each side by '21'.
a = 0.7142857143

Simplifying
a = 0.7142857143