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Simplifying 7k + 5 = 2k + 20 Reorder the terms: 5 + 7k = 2k + 20 Reorder the terms: 5 + 7k = 20 + 2k Solving 5 + 7k = 20 + 2k Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-2k' to each side of the equation. 5 + 7k + -2k = 20 + 2k + -2k Combine like terms: 7k + -2k = 5k 5 + 5k = 20 + 2k + -2k Combine like terms: 2k + -2k = 0 5 + 5k = 20 + 0 5 + 5k = 20 Add '-5' to each side of the equation. 5 + -5 + 5k = 20 + -5 Combine like terms: 5 + -5 = 0 0 + 5k = 20 + -5 5k = 20 + -5 Combine like terms: 20 + -5 = 15 5k = 15 Divide each side by '5'. k = 3 Simplifying k = 3
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