4a+3a-6+(6-a)-(a-1)=

Solution for 4a+3a-6+(6-a)-(a-1)= equation:

Simplifying
4a + 3a + -6 + (6 + -1a) + -1(a + -1) = 0

Remove parenthesis around (6 + -1a)
4a + 3a + -6 + 6 + -1a + -1(a + -1) = 0

Reorder the terms:
4a + 3a + -6 + 6 + -1a + -1(-1 + a) = 0
4a + 3a + -6 + 6 + -1a + (-1 * -1 + a * -1) = 0
4a + 3a + -6 + 6 + -1a + (1 + -1a) = 0

Reorder the terms:
-6 + 6 + 1 + 4a + 3a + -1a + -1a = 0

Combine like terms: -6 + 6 = 0
0 + 1 + 4a + 3a + -1a + -1a = 0
1 + 4a + 3a + -1a + -1a = 0

Combine like terms: 4a + 3a = 7a
1 + 7a + -1a + -1a = 0

Combine like terms: 7a + -1a = 6a
1 + 6a + -1a = 0

Combine like terms: 6a + -1a = 5a
1 + 5a = 0

Solving
1 + 5a = 0

Solving for variable 'a'.

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

Add '-1' to each side of the equation.
1 + -1 + 5a = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 5a = 0 + -1
5a = 0 + -1

Combine like terms: 0 + -1 = -1
5a = -1

Divide each side by '5'.
a = -0.2

Simplifying
a = -0.2