Simplifying 20k + 50 = 0 Reorder the terms: 50 + 20k = 0 Solving 50 + 20k = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-50' to each side of the equation. 50 + -50 + 20k = 0 + -50 Combine like terms: 50 + -50 = 0 0 + 20k = 0 + -50 20k = 0 + -50 Combine like terms: 0 + -50 = -50 20k = -50 Divide each side by '20'. k = -2.5 Simplifying k = -2.5