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