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Simplifying 15x2 + -18k + 9 = 0 Reorder the terms: 9 + -18k + 15x2 = 0 Solving 9 + -18k + 15x2 = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -18k + -9 + 15x2 = 0 + -9 Reorder the terms: 9 + -9 + -18k + 15x2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -18k + 15x2 = 0 + -9 -18k + 15x2 = 0 + -9 Combine like terms: 0 + -9 = -9 -18k + 15x2 = -9 Add '-15x2' to each side of the equation. -18k + 15x2 + -15x2 = -9 + -15x2 Combine like terms: 15x2 + -15x2 = 0 -18k + 0 = -9 + -15x2 -18k = -9 + -15x2 Divide each side by '-18'. k = 0.5 + 0.8333333333x2 Simplifying k = 0.5 + 0.8333333333x2
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