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Simplifying 20 + 4r = 32 + -2r Solving 20 + 4r = 32 + -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. 20 + 4r + 2r = 32 + -2r + 2r Combine like terms: 4r + 2r = 6r 20 + 6r = 32 + -2r + 2r Combine like terms: -2r + 2r = 0 20 + 6r = 32 + 0 20 + 6r = 32 Add '-20' to each side of the equation. 20 + -20 + 6r = 32 + -20 Combine like terms: 20 + -20 = 0 0 + 6r = 32 + -20 6r = 32 + -20 Combine like terms: 32 + -20 = 12 6r = 12 Divide each side by '6'. r = 2 Simplifying r = 2
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