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Simplifying 2.5r + 2r + 7 + -2 = 5 Reorder the terms: 7 + -2 + 2.5r + 2r = 5 Combine like terms: 7 + -2 = 5 5 + 2.5r + 2r = 5 Combine like terms: 2.5r + 2r = 4.5r 5 + 4.5r = 5 Add '-5' to each side of the equation. 5 + -5 + 4.5r = 5 + -5 Combine like terms: 5 + -5 = 0 0 + 4.5r = 5 + -5 4.5r = 5 + -5 Combine like terms: 5 + -5 = 0 4.5r = 0 Solving 4.5r = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Divide each side by '4.5'. r = 0 Simplifying r = 0
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