6-a=3a-6a

Solution for 6-a=3a-6a equation:

Simplifying
6 + -1a = 3a + -6a

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

Solving
6 + -1a = -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
6 + -1a + 3a = -3a + 3a

Combine like terms: -1a + 3a = 2a
6 + 2a = -3a + 3a

Combine like terms: -3a + 3a = 0
6 + 2a = 0

Add '-6' to each side of the equation.
6 + -6 + 2a = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 2a = 0 + -6
2a = 0 + -6

Combine like terms: 0 + -6 = -6
2a = -6

Divide each side by '2'.
a = -3

Simplifying
a = -3