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Simplifying 7r + 8(r + 2) = 6r Reorder the terms: 7r + 8(2 + r) = 6r 7r + (2 * 8 + r * 8) = 6r 7r + (16 + 8r) = 6r Reorder the terms: 16 + 7r + 8r = 6r Combine like terms: 7r + 8r = 15r 16 + 15r = 6r Solving 16 + 15r = 6r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-6r' to each side of the equation. 16 + 15r + -6r = 6r + -6r Combine like terms: 15r + -6r = 9r 16 + 9r = 6r + -6r Combine like terms: 6r + -6r = 0 16 + 9r = 0 Add '-16' to each side of the equation. 16 + -16 + 9r = 0 + -16 Combine like terms: 16 + -16 = 0 0 + 9r = 0 + -16 9r = 0 + -16 Combine like terms: 0 + -16 = -16 9r = -16 Divide each side by '9'. r = -1.777777778 Simplifying r = -1.777777778
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