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Simplifying 16x2 + 18r + 5 = 0 Reorder the terms: 5 + 18r + 16x2 = 0 Solving 5 + 18r + 16x2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + 18r + -5 + 16x2 = 0 + -5 Reorder the terms: 5 + -5 + 18r + 16x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 18r + 16x2 = 0 + -5 18r + 16x2 = 0 + -5 Combine like terms: 0 + -5 = -5 18r + 16x2 = -5 Add '-16x2' to each side of the equation. 18r + 16x2 + -16x2 = -5 + -16x2 Combine like terms: 16x2 + -16x2 = 0 18r + 0 = -5 + -16x2 18r = -5 + -16x2 Divide each side by '18'. r = -0.2777777778 + -0.8888888889x2 Simplifying r = -0.2777777778 + -0.8888888889x2
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