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Simplifying 7r + 8 = 5r Reorder the terms: 8 + 7r = 5r Solving 8 + 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. 8 + 7r + -5r = 5r + -5r Combine like terms: 7r + -5r = 2r 8 + 2r = 5r + -5r Combine like terms: 5r + -5r = 0 8 + 2r = 0 Add '-8' to each side of the equation. 8 + -8 + 2r = 0 + -8 Combine like terms: 8 + -8 = 0 0 + 2r = 0 + -8 2r = 0 + -8 Combine like terms: 0 + -8 = -8 2r = -8 Divide each side by '2'. r = -4 Simplifying r = -4
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