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Simplifying x2 + -5mx + 84 = 0 Reorder the terms: 84 + -5mx + x2 = 0 Solving 84 + -5mx + x2 = 0 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-84' to each side of the equation. 84 + -5mx + -84 + x2 = 0 + -84 Reorder the terms: 84 + -84 + -5mx + x2 = 0 + -84 Combine like terms: 84 + -84 = 0 0 + -5mx + x2 = 0 + -84 -5mx + x2 = 0 + -84 Combine like terms: 0 + -84 = -84 -5mx + x2 = -84 Add '-1x2' to each side of the equation. -5mx + x2 + -1x2 = -84 + -1x2 Combine like terms: x2 + -1x2 = 0 -5mx + 0 = -84 + -1x2 -5mx = -84 + -1x2 Divide each side by '-5x'. m = 16.8x-1 + 0.2x Simplifying m = 16.8x-1 + 0.2x
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