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Simplifying 30 = 2.5r Solving 30 = 2.5r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2.5r' to each side of the equation. 30 + -2.5r = 2.5r + -2.5r Combine like terms: 2.5r + -2.5r = 0.0 30 + -2.5r = 0.0 Add '-30' to each side of the equation. 30 + -30 + -2.5r = 0.0 + -30 Combine like terms: 30 + -30 = 0 0 + -2.5r = 0.0 + -30 -2.5r = 0.0 + -30 Combine like terms: 0.0 + -30 = -30 -2.5r = -30 Divide each side by '-2.5'. r = 12 Simplifying r = 12
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