2-2(4+9a)=

Solution for 2-2(4+9a)= equation:

Simplifying
2 + -2(4 + 9a) = 0
2 + (4 * -2 + 9a * -2) = 0
2 + (-8 + -18a) = 0

Combine like terms: 2 + -8 = -6
-6 + -18a = 0

Solving
-6 + -18a = 0

Solving for variable 'a'.

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

Add '6' to each side of the equation.
-6 + 6 + -18a = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -18a = 0 + 6
-18a = 0 + 6

Combine like terms: 0 + 6 = 6
-18a = 6

Divide each side by '-18'.
a = -0.3333333333

Simplifying
a = -0.3333333333