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Simplifying 2(1 + 8r) = 2 (1 * 2 + 8r * 2) = 2 (2 + 16r) = 2 Add '-2' to each side of the equation. 2 + -2 + 16r = 2 + -2 Combine like terms: 2 + -2 = 0 0 + 16r = 2 + -2 16r = 2 + -2 Combine like terms: 2 + -2 = 0 16r = 0 Solving 16r = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Divide each side by '16'. r = 0 Simplifying r = 0
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