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Simplifying -31 = -3 + 4k Solving -31 = -3 + 4k Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-4k' to each side of the equation. -31 + -4k = -3 + 4k + -4k Combine like terms: 4k + -4k = 0 -31 + -4k = -3 + 0 -31 + -4k = -3 Add '31' to each side of the equation. -31 + 31 + -4k = -3 + 31 Combine like terms: -31 + 31 = 0 0 + -4k = -3 + 31 -4k = -3 + 31 Combine like terms: -3 + 31 = 28 -4k = 28 Divide each side by '-4'. k = -7 Simplifying k = -7
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