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Simplifying x2 + -7x = x(3 + x) Reorder the terms: -7x + x2 = x(3 + x) -7x + x2 = (3 * x + x * x) -7x + x2 = (3x + x2) Add '-1x2' to each side of the equation. -7x + x2 + -1x2 = 3x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -7x + 0 = 3x + x2 + -1x2 -7x = 3x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -7x = 3x + 0 -7x = 3x Solving -7x = 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. -7x + -3x = 3x + -3x Combine like terms: -7x + -3x = -10x -10x = 3x + -3x Combine like terms: 3x + -3x = 0 -10x = 0 Divide each side by '-10'. x = 0.0 Simplifying x = 0.0
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