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Simplifying 42 = 3k + 28 Reorder the terms: 42 = 28 + 3k Solving 42 = 28 + 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. 42 + -3k = 28 + 3k + -3k Combine like terms: 3k + -3k = 0 42 + -3k = 28 + 0 42 + -3k = 28 Add '-42' to each side of the equation. 42 + -42 + -3k = 28 + -42 Combine like terms: 42 + -42 = 0 0 + -3k = 28 + -42 -3k = 28 + -42 Combine like terms: 28 + -42 = -14 -3k = -14 Divide each side by '-3'. k = 4.666666667 Simplifying k = 4.666666667
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