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