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

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

Simplifying
3a + -6 + a + -3(a + 8) = 0

Reorder the terms:
3a + -6 + a + -3(8 + a) = 0
3a + -6 + a + (8 * -3 + a * -3) = 0
3a + -6 + a + (-24 + -3a) = 0

Reorder the terms:
-6 + -24 + 3a + a + -3a = 0

Combine like terms: -6 + -24 = -30
-30 + 3a + a + -3a = 0

Combine like terms: 3a + a = 4a
-30 + 4a + -3a = 0

Combine like terms: 4a + -3a = 1a
-30 + 1a = 0

Solving
-30 + 1a = 0

Solving for variable 'a'.

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

Add '30' to each side of the equation.
-30 + 30 + 1a = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 1a = 0 + 30
1a = 0 + 30

Combine like terms: 0 + 30 = 30
1a = 30

Divide each side by '1'.
a = 30

Simplifying
a = 30