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Simplifying -30 = 7r + 5 Reorder the terms: -30 = 5 + 7r Solving -30 = 5 + 7r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7r' to each side of the equation. -30 + -7r = 5 + 7r + -7r Combine like terms: 7r + -7r = 0 -30 + -7r = 5 + 0 -30 + -7r = 5 Add '30' to each side of the equation. -30 + 30 + -7r = 5 + 30 Combine like terms: -30 + 30 = 0 0 + -7r = 5 + 30 -7r = 5 + 30 Combine like terms: 5 + 30 = 35 -7r = 35 Divide each side by '-7'. r = -5 Simplifying r = -5
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