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Simplifying x2 + -8x + 19 = x2 + -1 Reorder the terms: 19 + -8x + x2 = x2 + -1 Reorder the terms: 19 + -8x + x2 = -1 + x2 Add '-1x2' to each side of the equation. 19 + -8x + x2 + -1x2 = -1 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 19 + -8x + 0 = -1 + x2 + -1x2 19 + -8x = -1 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 19 + -8x = -1 + 0 19 + -8x = -1 Solving 19 + -8x = -1 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-19' to each side of the equation. 19 + -19 + -8x = -1 + -19 Combine like terms: 19 + -19 = 0 0 + -8x = -1 + -19 -8x = -1 + -19 Combine like terms: -1 + -19 = -20 -8x = -20 Divide each side by '-8'. x = 2.5 Simplifying x = 2.5
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