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Simplifying -2r + 15 = -3 + -8r Reorder the terms: 15 + -2r = -3 + -8r Solving 15 + -2r = -3 + -8r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '8r' to each side of the equation. 15 + -2r + 8r = -3 + -8r + 8r Combine like terms: -2r + 8r = 6r 15 + 6r = -3 + -8r + 8r Combine like terms: -8r + 8r = 0 15 + 6r = -3 + 0 15 + 6r = -3 Add '-15' to each side of the equation. 15 + -15 + 6r = -3 + -15 Combine like terms: 15 + -15 = 0 0 + 6r = -3 + -15 6r = -3 + -15 Combine like terms: -3 + -15 = -18 6r = -18 Divide each side by '6'. r = -3 Simplifying r = -3
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