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Simplifying 81 + 14r = -1r Solving 81 + 14r = -1r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add 'r' to each side of the equation. 81 + 14r + r = -1r + r Combine like terms: 14r + r = 15r 81 + 15r = -1r + r Combine like terms: -1r + r = 0 81 + 15r = 0 Add '-81' to each side of the equation. 81 + -81 + 15r = 0 + -81 Combine like terms: 81 + -81 = 0 0 + 15r = 0 + -81 15r = 0 + -81 Combine like terms: 0 + -81 = -81 15r = -81 Divide each side by '15'. r = -5.4 Simplifying r = -5.4
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