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Simplifying 8r + -7 = -27 + 3r Reorder the terms: -7 + 8r = -27 + 3r Solving -7 + 8r = -27 + 3r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-3r' to each side of the equation. -7 + 8r + -3r = -27 + 3r + -3r Combine like terms: 8r + -3r = 5r -7 + 5r = -27 + 3r + -3r Combine like terms: 3r + -3r = 0 -7 + 5r = -27 + 0 -7 + 5r = -27 Add '7' to each side of the equation. -7 + 7 + 5r = -27 + 7 Combine like terms: -7 + 7 = 0 0 + 5r = -27 + 7 5r = -27 + 7 Combine like terms: -27 + 7 = -20 5r = -20 Divide each side by '5'. r = -4 Simplifying r = -4
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