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Simplifying 1.3r + -0.7 = 12 Reorder the terms: -0.7 + 1.3r = 12 Solving -0.7 + 1.3r = 12 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '0.7' to each side of the equation. -0.7 + 0.7 + 1.3r = 12 + 0.7 Combine like terms: -0.7 + 0.7 = 0.0 0.0 + 1.3r = 12 + 0.7 1.3r = 12 + 0.7 Combine like terms: 12 + 0.7 = 12.7 1.3r = 12.7 Divide each side by '1.3'. r = 9.769230769 Simplifying r = 9.769230769
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