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Simplifying 7x2 + 20x + 5 = 5x2 + 20x + 4 Reorder the terms: 5 + 20x + 7x2 = 5x2 + 20x + 4 Reorder the terms: 5 + 20x + 7x2 = 4 + 20x + 5x2 Add '-20x' to each side of the equation. 5 + 20x + -20x + 7x2 = 4 + 20x + -20x + 5x2 Combine like terms: 20x + -20x = 0 5 + 0 + 7x2 = 4 + 20x + -20x + 5x2 5 + 7x2 = 4 + 20x + -20x + 5x2 Combine like terms: 20x + -20x = 0 5 + 7x2 = 4 + 0 + 5x2 5 + 7x2 = 4 + 5x2 Solving 5 + 7x2 = 4 + 5x2 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5x2' to each side of the equation. 5 + 7x2 + -5x2 = 4 + 5x2 + -5x2 Combine like terms: 7x2 + -5x2 = 2x2 5 + 2x2 = 4 + 5x2 + -5x2 Combine like terms: 5x2 + -5x2 = 0 5 + 2x2 = 4 + 0 5 + 2x2 = 4 Add '-5' to each side of the equation. 5 + -5 + 2x2 = 4 + -5 Combine like terms: 5 + -5 = 0 0 + 2x2 = 4 + -5 2x2 = 4 + -5 Combine like terms: 4 + -5 = -1 2x2 = -1 Divide each side by '2'. x2 = -0.5 Simplifying x2 = -0.5 Reorder the terms: 0.5 + x2 = -0.5 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.5 + x2 = 0.0 The solution to this equation could not be determined.
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