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Simplifying 2 + 4r = 30 Solving 2 + 4r = 30 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 4r = 30 + -2 Combine like terms: 2 + -2 = 0 0 + 4r = 30 + -2 4r = 30 + -2 Combine like terms: 30 + -2 = 28 4r = 28 Divide each side by '4'. r = 7 Simplifying r = 7
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