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Simplifying kx2 + 15x + 7 = 0 Reorder the terms: 7 + kx2 + 15x = 0 Solving 7 + kx2 + 15x = 0 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + kx2 + -7 + 15x = 0 + -7 Reorder the terms: 7 + -7 + kx2 + 15x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + kx2 + 15x = 0 + -7 kx2 + 15x = 0 + -7 Combine like terms: 0 + -7 = -7 kx2 + 15x = -7 Add '-15x' to each side of the equation. kx2 + 15x + -15x = -7 + -15x Combine like terms: 15x + -15x = 0 kx2 + 0 = -7 + -15x kx2 = -7 + -15x Divide each side by 'x2'. k = -7x-2 + -15x-1 Simplifying k = -7x-2 + -15x-1
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