-42+4k=k-4k

Solution for -42+4k=k-4k equation:

Simplifying
-42 + 4k = k + -4k

Combine like terms: k + -4k = -3k
-42 + 4k = -3k

Solving
-42 + 4k = -3k

Solving for variable 'k'.

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

Add '3k' to each side of the equation.
-42 + 4k + 3k = -3k + 3k

Combine like terms: 4k + 3k = 7k
-42 + 7k = -3k + 3k

Combine like terms: -3k + 3k = 0
-42 + 7k = 0

Add '42' to each side of the equation.
-42 + 42 + 7k = 0 + 42

Combine like terms: -42 + 42 = 0
0 + 7k = 0 + 42
7k = 0 + 42

Combine like terms: 0 + 42 = 42
7k = 42

Divide each side by '7'.
k = 6

Simplifying
k = 6