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Simplifying -7(r + 8) = 14 Reorder the terms: -7(8 + r) = 14 (8 * -7 + r * -7) = 14 (-56 + -7r) = 14 Solving -56 + -7r = 14 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '56' to each side of the equation. -56 + 56 + -7r = 14 + 56 Combine like terms: -56 + 56 = 0 0 + -7r = 14 + 56 -7r = 14 + 56 Combine like terms: 14 + 56 = 70 -7r = 70 Divide each side by '-7'. r = -10 Simplifying r = -10
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