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Simplifying 7r = -5r Solving 7r = -5r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '5r' to each side of the equation. 7r + 5r = -5r + 5r Combine like terms: 7r + 5r = 12r 12r = -5r + 5r Combine like terms: -5r + 5r = 0 12r = 0 Divide each side by '12'. r = 0 Simplifying r = 0
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