Simplifying
4w + -7k = 28
Reorder the terms:
-7k + 4w = 28
Solving
-7k + 4w = 28
Solving for variable 'k'.
Move all terms containing k to the left, all other terms to the right.
Add '-4w' to each side of the equation.
-7k + 4w + -4w = 28 + -4w
Combine like terms: 4w + -4w = 0
-7k + 0 = 28 + -4w
-7k = 28 + -4w
Divide each side by '-7'.
k = -4 + 0.5714285714w
Simplifying
k = -4 + 0.5714285714w