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Simplifying 1 + 2r = r + 4 Reorder the terms: 1 + 2r = 4 + r Solving 1 + 2r = 4 + r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1r' to each side of the equation. 1 + 2r + -1r = 4 + r + -1r Combine like terms: 2r + -1r = 1r 1 + 1r = 4 + r + -1r Combine like terms: r + -1r = 0 1 + 1r = 4 + 0 1 + 1r = 4 Add '-1' to each side of the equation. 1 + -1 + 1r = 4 + -1 Combine like terms: 1 + -1 = 0 0 + 1r = 4 + -1 1r = 4 + -1 Combine like terms: 4 + -1 = 3 1r = 3 Divide each side by '1'. r = 3 Simplifying r = 3
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