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Simplifying 9r + -26 = -8 + 7r Reorder the terms: -26 + 9r = -8 + 7r Solving -26 + 9r = -8 + 7r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7r' to each side of the equation. -26 + 9r + -7r = -8 + 7r + -7r Combine like terms: 9r + -7r = 2r -26 + 2r = -8 + 7r + -7r Combine like terms: 7r + -7r = 0 -26 + 2r = -8 + 0 -26 + 2r = -8 Add '26' to each side of the equation. -26 + 26 + 2r = -8 + 26 Combine like terms: -26 + 26 = 0 0 + 2r = -8 + 26 2r = -8 + 26 Combine like terms: -8 + 26 = 18 2r = 18 Divide each side by '2'. r = 9 Simplifying r = 9
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