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Simplifying 1 + 3r = -3r + -8 Reorder the terms: 1 + 3r = -8 + -3r Solving 1 + 3r = -8 + -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. 1 + 3r + 3r = -8 + -3r + 3r Combine like terms: 3r + 3r = 6r 1 + 6r = -8 + -3r + 3r Combine like terms: -3r + 3r = 0 1 + 6r = -8 + 0 1 + 6r = -8 Add '-1' to each side of the equation. 1 + -1 + 6r = -8 + -1 Combine like terms: 1 + -1 = 0 0 + 6r = -8 + -1 6r = -8 + -1 Combine like terms: -8 + -1 = -9 6r = -9 Divide each side by '6'. r = -1.5 Simplifying r = -1.5
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