6a+3(a-1)=

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

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

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

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

Combine like terms: 6a + 3a = 9a
-3 + 9a = 0

Solving
-3 + 9a = 0

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + 3 + 9a = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 9a = 0 + 3
9a = 0 + 3

Combine like terms: 0 + 3 = 3
9a = 3

Divide each side by '9'.
a = 0.3333333333

Simplifying
a = 0.3333333333