-(9-6a)-(12+5a)-1=-(6-5a)+(-a)+5

Solution for -(9-6a)-(12+5a)-1=-(6-5a)+(-a)+5 equation:

Simplifying
-1(9 + -6a) + -1(12 + 5a) + -1 = -1(6 + -5a) + (-1a) + 5
(9 * -1 + -6a * -1) + -1(12 + 5a) + -1 = -1(6 + -5a) + (-1a) + 5
(-9 + 6a) + -1(12 + 5a) + -1 = -1(6 + -5a) + (-1a) + 5
-9 + 6a + (12 * -1 + 5a * -1) + -1 = -1(6 + -5a) + (-1a) + 5
-9 + 6a + (-12 + -5a) + -1 = -1(6 + -5a) + (-1a) + 5

Reorder the terms:
-9 + -12 + -1 + 6a + -5a = -1(6 + -5a) + (-1a) + 5

Combine like terms: -9 + -12 = -21
-21 + -1 + 6a + -5a = -1(6 + -5a) + (-1a) + 5

Combine like terms: -21 + -1 = -22
-22 + 6a + -5a = -1(6 + -5a) + (-1a) + 5

Combine like terms: 6a + -5a = 1a
-22 + 1a = -1(6 + -5a) + (-1a) + 5
-22 + 1a = (6 * -1 + -5a * -1) + (-1a) + 5
-22 + 1a = (-6 + 5a) + (-1a) + 5

Reorder the terms:
-22 + 1a = -6 + 5 + 5a + (-1a)

Combine like terms: -6 + 5 = -1
-22 + 1a = -1 + 5a + (-1a)

Combine like terms: 5a + (-1a) = 4a
-22 + 1a = -1 + 4a

Solving
-22 + 1a = -1 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
-22 + 1a + -4a = -1 + 4a + -4a

Combine like terms: 1a + -4a = -3a
-22 + -3a = -1 + 4a + -4a

Combine like terms: 4a + -4a = 0
-22 + -3a = -1 + 0
-22 + -3a = -1

Add '22' to each side of the equation.
-22 + 22 + -3a = -1 + 22

Combine like terms: -22 + 22 = 0
0 + -3a = -1 + 22
-3a = -1 + 22

Combine like terms: -1 + 22 = 21
-3a = 21

Divide each side by '-3'.
a = -7

Simplifying
a = -7