3a+(-6)+(-1)+(-9a)=

Solution for 3a+(-6)+(-1)+(-9a)= equation:

Simplifying
3a + (-6) + (-1) + (-9a) = 0
3a + -6 + (-1) + (-9a) = 0
3a + -6 + -1 + (-9a) = 0

Reorder the terms:
-6 + -1 + 3a + (-9a) = 0

Combine like terms: -6 + -1 = -7
-7 + 3a + (-9a) = 0

Combine like terms: 3a + (-9a) = -6a
-7 + -6a = 0

Solving
-7 + -6a = 0

Solving for variable 'a'.

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

Add '7' to each side of the equation.
-7 + 7 + -6a = 0 + 7

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

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

Divide each side by '-6'.
a = -1.166666667

Simplifying
a = -1.166666667