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Simplifying 13r + -16 = 5r Reorder the terms: -16 + 13r = 5r Solving -16 + 13r = 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. -16 + 13r + -5r = 5r + -5r Combine like terms: 13r + -5r = 8r -16 + 8r = 5r + -5r Combine like terms: 5r + -5r = 0 -16 + 8r = 0 Add '16' to each side of the equation. -16 + 16 + 8r = 0 + 16 Combine like terms: -16 + 16 = 0 0 + 8r = 0 + 16 8r = 0 + 16 Combine like terms: 0 + 16 = 16 8r = 16 Divide each side by '8'. r = 2 Simplifying r = 2
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