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Simplifying 2(-7 + 4r) = 0 (-7 * 2 + 4r * 2) = 0 (-14 + 8r) = 0 Solving -14 + 8r = 0 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 + 8r = 0 + 14 Combine like terms: -14 + 14 = 0 0 + 8r = 0 + 14 8r = 0 + 14 Combine like terms: 0 + 14 = 14 8r = 14 Divide each side by '8'. r = 1.75 Simplifying r = 1.75
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