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Simplifying 81 = r5 Solving 81 = r5 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1r5' to each side of the equation. 81 + -1r5 = r5 + -1r5 Combine like terms: r5 + -1r5 = 0 81 + -1r5 = 0 Add '-81' to each side of the equation. 81 + -81 + -1r5 = 0 + -81 Combine like terms: 81 + -81 = 0 0 + -1r5 = 0 + -81 -1r5 = 0 + -81 Combine like terms: 0 + -81 = -81 -1r5 = -81 Divide each side by '-1'. r5 = 81 Simplifying r5 = 81 Reorder the terms: -81 + r5 = 81 + -81 Combine like terms: 81 + -81 = 0 -81 + r5 = 0 The solution to this equation could not be determined.
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