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Simplifying X2 + 4x + 3 = 15 Reorder the terms: 3 + X2 + 4x = 15 Solving 3 + X2 + 4x = 15 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + X2 + -3 + 4x = 15 + -3 Reorder the terms: 3 + -3 + X2 + 4x = 15 + -3 Combine like terms: 3 + -3 = 0 0 + X2 + 4x = 15 + -3 X2 + 4x = 15 + -3 Combine like terms: 15 + -3 = 12 X2 + 4x = 12 Add '-4x' to each side of the equation. X2 + 4x + -4x = 12 + -4x Combine like terms: 4x + -4x = 0 X2 + 0 = 12 + -4x X2 = 12 + -4x Simplifying X2 = 12 + -4x Reorder the terms: -12 + X2 + 4x = 12 + -4x + -12 + 4x Reorder the terms: -12 + X2 + 4x = 12 + -12 + -4x + 4x Combine like terms: 12 + -12 = 0 -12 + X2 + 4x = 0 + -4x + 4x -12 + X2 + 4x = -4x + 4x Combine like terms: -4x + 4x = 0 -12 + X2 + 4x = 0 The solution to this equation could not be determined.
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