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Simplifying 2(2r) = 6 Remove parenthesis around (2r) 2 * 2r = 6 Multiply 2 * 2 4r = 6 Solving 4r = 6 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Divide each side by '4'. r = 1.5 Simplifying r = 1.5
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