-42=6(3c-1)

Solution for -42=6(3c-1) equation:

Simplifying
-42 = 6(3c + -1)

Reorder the terms:
-42 = 6(-1 + 3c)
-42 = (-1 * 6 + 3c * 6)
-42 = (-6 + 18c)

Solving
-42 = -6 + 18c

Solving for variable 'c'.

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

Add '-18c' to each side of the equation.
-42 + -18c = -6 + 18c + -18c

Combine like terms: 18c + -18c = 0
-42 + -18c = -6 + 0
-42 + -18c = -6

Add '42' to each side of the equation.
-42 + 42 + -18c = -6 + 42

Combine like terms: -42 + 42 = 0
0 + -18c = -6 + 42
-18c = -6 + 42

Combine like terms: -6 + 42 = 36
-18c = 36

Divide each side by '-18'.
c = -2

Simplifying
c = -2