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Simplifying 6r + 6 = 20r + 13 Reorder the terms: 6 + 6r = 20r + 13 Reorder the terms: 6 + 6r = 13 + 20r Solving 6 + 6r = 13 + 20r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-20r' to each side of the equation. 6 + 6r + -20r = 13 + 20r + -20r Combine like terms: 6r + -20r = -14r 6 + -14r = 13 + 20r + -20r Combine like terms: 20r + -20r = 0 6 + -14r = 13 + 0 6 + -14r = 13 Add '-6' to each side of the equation. 6 + -6 + -14r = 13 + -6 Combine like terms: 6 + -6 = 0 0 + -14r = 13 + -6 -14r = 13 + -6 Combine like terms: 13 + -6 = 7 -14r = 7 Divide each side by '-14'. r = -0.5 Simplifying r = -0.5
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