-8a-(3a+6)=4-a

Solution for -8a-(3a+6)=4-a equation:

Simplifying
-8a + -1(3a + 6) = 4 + -1a

Reorder the terms:
-8a + -1(6 + 3a) = 4 + -1a
-8a + (6 * -1 + 3a * -1) = 4 + -1a
-8a + (-6 + -3a) = 4 + -1a

Reorder the terms:
-6 + -8a + -3a = 4 + -1a

Combine like terms: -8a + -3a = -11a
-6 + -11a = 4 + -1a

Solving
-6 + -11a = 4 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
-6 + -11a + a = 4 + -1a + a

Combine like terms: -11a + a = -10a
-6 + -10a = 4 + -1a + a

Combine like terms: -1a + a = 0
-6 + -10a = 4 + 0
-6 + -10a = 4

Add '6' to each side of the equation.
-6 + 6 + -10a = 4 + 6

Combine like terms: -6 + 6 = 0
0 + -10a = 4 + 6
-10a = 4 + 6

Combine like terms: 4 + 6 = 10
-10a = 10

Divide each side by '-10'.
a = -1

Simplifying
a = -1