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Simplifying 2r + 5 + 2r + 4r + -3 + r = 65 Reorder the terms: 5 + -3 + 2r + 2r + 4r + r = 65 Combine like terms: 5 + -3 = 2 2 + 2r + 2r + 4r + r = 65 Combine like terms: 2r + 2r = 4r 2 + 4r + 4r + r = 65 Combine like terms: 4r + 4r = 8r 2 + 8r + r = 65 Combine like terms: 8r + r = 9r 2 + 9r = 65 Solving 2 + 9r = 65 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 + 9r = 65 + -2 Combine like terms: 2 + -2 = 0 0 + 9r = 65 + -2 9r = 65 + -2 Combine like terms: 65 + -2 = 63 9r = 63 Divide each side by '9'. r = 7 Simplifying r = 7
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