-2(c-6)=30

Solution for -2(c-6)=30 equation:

Simplifying
-2(c + -6) = 30

Reorder the terms:
-2(-6 + c) = 30
(-6 * -2 + c * -2) = 30
(12 + -2c) = 30

Solving
12 + -2c = 30

Solving for variable 'c'.

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

Add '-12' to each side of the equation.
12 + -12 + -2c = 30 + -12

Combine like terms: 12 + -12 = 0
0 + -2c = 30 + -12
-2c = 30 + -12

Combine like terms: 30 + -12 = 18
-2c = 18

Divide each side by '-2'.
c = -9

Simplifying
c = -9