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Simplifying 7.5 = 3.8r + 3.7r Combine like terms: 3.8r + 3.7r = 7.5r 7.5 = 7.5r Solving 7.5 = 7.5r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7.5r' to each side of the equation. 7.5 + -7.5r = 7.5r + -7.5r Combine like terms: 7.5r + -7.5r = 0.0 7.5 + -7.5r = 0.0 Add '-7.5' to each side of the equation. 7.5 + -7.5 + -7.5r = 0.0 + -7.5 Combine like terms: 7.5 + -7.5 = 0.0 0.0 + -7.5r = 0.0 + -7.5 -7.5r = 0.0 + -7.5 Combine like terms: 0.0 + -7.5 = -7.5 -7.5r = -7.5 Divide each side by '-7.5'. r = 1 Simplifying r = 1
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