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Simplifying 4r + -17 = 2r + 13 Reorder the terms: -17 + 4r = 2r + 13 Reorder the terms: -17 + 4r = 13 + 2r Solving -17 + 4r = 13 + 2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2r' to each side of the equation. -17 + 4r + -2r = 13 + 2r + -2r Combine like terms: 4r + -2r = 2r -17 + 2r = 13 + 2r + -2r Combine like terms: 2r + -2r = 0 -17 + 2r = 13 + 0 -17 + 2r = 13 Add '17' to each side of the equation. -17 + 17 + 2r = 13 + 17 Combine like terms: -17 + 17 = 0 0 + 2r = 13 + 17 2r = 13 + 17 Combine like terms: 13 + 17 = 30 2r = 30 Divide each side by '2'. r = 15 Simplifying r = 15
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