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Simplifying 7 + 91r = 39r + 55 Reorder the terms: 7 + 91r = 55 + 39r Solving 7 + 91r = 55 + 39r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-39r' to each side of the equation. 7 + 91r + -39r = 55 + 39r + -39r Combine like terms: 91r + -39r = 52r 7 + 52r = 55 + 39r + -39r Combine like terms: 39r + -39r = 0 7 + 52r = 55 + 0 7 + 52r = 55 Add '-7' to each side of the equation. 7 + -7 + 52r = 55 + -7 Combine like terms: 7 + -7 = 0 0 + 52r = 55 + -7 52r = 55 + -7 Combine like terms: 55 + -7 = 48 52r = 48 Divide each side by '52'. r = 0.9230769231 Simplifying r = 0.9230769231
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