3a-(6-a)=36

Solution for 3a-(6-a)=36 equation:

Simplifying
3a + -1(6 + -1a) = 36
3a + (6 * -1 + -1a * -1) = 36
3a + (-6 + 1a) = 36

Reorder the terms:
-6 + 3a + 1a = 36

Combine like terms: 3a + 1a = 4a
-6 + 4a = 36

Solving
-6 + 4a = 36

Solving for variable 'a'.

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

Add '6' to each side of the equation.
-6 + 6 + 4a = 36 + 6

Combine like terms: -6 + 6 = 0
0 + 4a = 36 + 6
4a = 36 + 6

Combine like terms: 36 + 6 = 42
4a = 42

Divide each side by '4'.
a = 10.5

Simplifying
a = 10.5