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Simplifying 2(r + 7) + 4r = 8 Reorder the terms: 2(7 + r) + 4r = 8 (7 * 2 + r * 2) + 4r = 8 (14 + 2r) + 4r = 8 Combine like terms: 2r + 4r = 6r 14 + 6r = 8 Solving 14 + 6r = 8 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + 6r = 8 + -14 Combine like terms: 14 + -14 = 0 0 + 6r = 8 + -14 6r = 8 + -14 Combine like terms: 8 + -14 = -6 6r = -6 Divide each side by '6'. r = -1 Simplifying r = -1
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