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Simplifying 30 + 5r = 20 Solving 30 + 5r = 20 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 + 5r = 20 + -30 Combine like terms: 30 + -30 = 0 0 + 5r = 20 + -30 5r = 20 + -30 Combine like terms: 20 + -30 = -10 5r = -10 Divide each side by '5'. r = -2 Simplifying r = -2
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