-42=7k

Solution for -42=7k equation:

Simplifying
-42 = 7k

Solving
-42 = 7k

Solving for variable 'k'.

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

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

Combine like terms: 7k + -7k = 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