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Simplifying 7r + -36 = 2r + 9 Reorder the terms: -36 + 7r = 2r + 9 Reorder the terms: -36 + 7r = 9 + 2r Solving -36 + 7r = 9 + 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. -36 + 7r + -2r = 9 + 2r + -2r Combine like terms: 7r + -2r = 5r -36 + 5r = 9 + 2r + -2r Combine like terms: 2r + -2r = 0 -36 + 5r = 9 + 0 -36 + 5r = 9 Add '36' to each side of the equation. -36 + 36 + 5r = 9 + 36 Combine like terms: -36 + 36 = 0 0 + 5r = 9 + 36 5r = 9 + 36 Combine like terms: 9 + 36 = 45 5r = 45 Divide each side by '5'. r = 9 Simplifying r = 9
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