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Simplifying 180 = k + 2k + 45 Reorder the terms: 180 = 45 + k + 2k Combine like terms: k + 2k = 3k 180 = 45 + 3k Solving 180 = 45 + 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. 180 + -3k = 45 + 3k + -3k Combine like terms: 3k + -3k = 0 180 + -3k = 45 + 0 180 + -3k = 45 Add '-180' to each side of the equation. 180 + -180 + -3k = 45 + -180 Combine like terms: 180 + -180 = 0 0 + -3k = 45 + -180 -3k = 45 + -180 Combine like terms: 45 + -180 = -135 -3k = -135 Divide each side by '-3'. k = 45 Simplifying k = 45
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