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Simplifying 7r = 6r + -84 Reorder the terms: 7r = -84 + 6r Solving 7r = -84 + 6r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-6r' to each side of the equation. 7r + -6r = -84 + 6r + -6r Combine like terms: 7r + -6r = 1r 1r = -84 + 6r + -6r Combine like terms: 6r + -6r = 0 1r = -84 + 0 1r = -84 Divide each side by '1'. r = -84 Simplifying r = -84
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