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Simplifying 3x2 + 5kx + -7 = 0 Reorder the terms: -7 + 5kx + 3x2 = 0 Solving -7 + 5kx + 3x2 = 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 + 5kx + 7 + 3x2 = 0 + 7 Reorder the terms: -7 + 7 + 5kx + 3x2 = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 5kx + 3x2 = 0 + 7 5kx + 3x2 = 0 + 7 Combine like terms: 0 + 7 = 7 5kx + 3x2 = 7 Add '-3x2' to each side of the equation. 5kx + 3x2 + -3x2 = 7 + -3x2 Combine like terms: 3x2 + -3x2 = 0 5kx + 0 = 7 + -3x2 5kx = 7 + -3x2 Divide each side by '5x'. k = 1.4x-1 + -0.6x Simplifying k = 1.4x-1 + -0.6x
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