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Simplifying 14r + -20 = 20 + 4r Reorder the terms: -20 + 14r = 20 + 4r Solving -20 + 14r = 20 + 4r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-4r' to each side of the equation. -20 + 14r + -4r = 20 + 4r + -4r Combine like terms: 14r + -4r = 10r -20 + 10r = 20 + 4r + -4r Combine like terms: 4r + -4r = 0 -20 + 10r = 20 + 0 -20 + 10r = 20 Add '20' to each side of the equation. -20 + 20 + 10r = 20 + 20 Combine like terms: -20 + 20 = 0 0 + 10r = 20 + 20 10r = 20 + 20 Combine like terms: 20 + 20 = 40 10r = 40 Divide each side by '10'. r = 4 Simplifying r = 4
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