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Simplifying 7r + -30 = 0 Reorder the terms: -30 + 7r = 0 Solving -30 + 7r = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '30' to each side of the equation. -30 + 30 + 7r = 0 + 30 Combine like terms: -30 + 30 = 0 0 + 7r = 0 + 30 7r = 0 + 30 Combine like terms: 0 + 30 = 30 7r = 30 Divide each side by '7'. r = 4.285714286 Simplifying r = 4.285714286
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