42=-4c-2c

Solution for 42=-4c-2c equation:

Simplifying
42 = -4c + -2c

Combine like terms: -4c + -2c = -6c
42 = -6c

Solving
42 = -6c

Solving for variable 'c'.

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

Add '6c' to each side of the equation.
42 + 6c = -6c + 6c

Combine like terms: -6c + 6c = 0
42 + 6c = 0

Add '-42' to each side of the equation.
42 + -42 + 6c = 0 + -42

Combine like terms: 42 + -42 = 0
0 + 6c = 0 + -42
6c = 0 + -42

Combine like terms: 0 + -42 = -42
6c = -42

Divide each side by '6'.
c = -7

Simplifying
c = -7