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Simplifying 20 = 3r + 2 Reorder the terms: 20 = 2 + 3r Solving 20 = 2 + 3r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-3r' to each side of the equation. 20 + -3r = 2 + 3r + -3r Combine like terms: 3r + -3r = 0 20 + -3r = 2 + 0 20 + -3r = 2 Add '-20' to each side of the equation. 20 + -20 + -3r = 2 + -20 Combine like terms: 20 + -20 = 0 0 + -3r = 2 + -20 -3r = 2 + -20 Combine like terms: 2 + -20 = -18 -3r = -18 Divide each side by '-3'. r = 6 Simplifying r = 6
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