10+3(4-6a)=-(6+12)

Solution for 10+3(4-6a)=-(6+12) equation:

Simplifying
10 + 3(4 + -6a) = -1(6 + 12)
10 + (4 * 3 + -6a * 3) = -1(6 + 12)
10 + (12 + -18a) = -1(6 + 12)

Combine like terms: 10 + 12 = 22
22 + -18a = -1(6 + 12)

Combine like terms: 6 + 12 = 18
22 + -18a = -1(18)

Multiply -1 * 18
22 + -18a = -18

Solving
22 + -18a = -18

Solving for variable 'a'.

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

Add '-22' to each side of the equation.
22 + -22 + -18a = -18 + -22

Combine like terms: 22 + -22 = 0
0 + -18a = -18 + -22
-18a = -18 + -22

Combine like terms: -18 + -22 = -40
-18a = -40

Divide each side by '-18'.
a = 2.222222222

Simplifying
a = 2.222222222