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Simplifying 2x2 + 19r + 45 = 0 Reorder the terms: 45 + 19r + 2x2 = 0 Solving 45 + 19r + 2x2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-45' to each side of the equation. 45 + 19r + -45 + 2x2 = 0 + -45 Reorder the terms: 45 + -45 + 19r + 2x2 = 0 + -45 Combine like terms: 45 + -45 = 0 0 + 19r + 2x2 = 0 + -45 19r + 2x2 = 0 + -45 Combine like terms: 0 + -45 = -45 19r + 2x2 = -45 Add '-2x2' to each side of the equation. 19r + 2x2 + -2x2 = -45 + -2x2 Combine like terms: 2x2 + -2x2 = 0 19r + 0 = -45 + -2x2 19r = -45 + -2x2 Divide each side by '19'. r = -2.368421053 + -0.1052631579x2 Simplifying r = -2.368421053 + -0.1052631579x2
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