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Simplifying 7x2 + 4 = 5x2 + -84 Reorder the terms: 4 + 7x2 = 5x2 + -84 Reorder the terms: 4 + 7x2 = -84 + 5x2 Solving 4 + 7x2 = -84 + 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. 4 + 7x2 + -5x2 = -84 + 5x2 + -5x2 Combine like terms: 7x2 + -5x2 = 2x2 4 + 2x2 = -84 + 5x2 + -5x2 Combine like terms: 5x2 + -5x2 = 0 4 + 2x2 = -84 + 0 4 + 2x2 = -84 Add '-4' to each side of the equation. 4 + -4 + 2x2 = -84 + -4 Combine like terms: 4 + -4 = 0 0 + 2x2 = -84 + -4 2x2 = -84 + -4 Combine like terms: -84 + -4 = -88 2x2 = -88 Divide each side by '2'. x2 = -44 Simplifying x2 = -44 Reorder the terms: 44 + x2 = -44 + 44 Combine like terms: -44 + 44 = 0 44 + x2 = 0 The solution to this equation could not be determined.
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