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Simplifying 6r + r = 5r Combine like terms: 6r + r = 7r 7r = 5r Solving 7r = 5r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-5r' to each side of the equation. 7r + -5r = 5r + -5r Combine like terms: 7r + -5r = 2r 2r = 5r + -5r Combine like terms: 5r + -5r = 0 2r = 0 Divide each side by '2'. r = 0 Simplifying r = 0
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