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Simplifying -12.9r + -12.74 = -12.2r Reorder the terms: -12.74 + -12.9r = -12.2r Solving -12.74 + -12.9r = -12.2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '12.2r' to each side of the equation. -12.74 + -12.9r + 12.2r = -12.2r + 12.2r Combine like terms: -12.9r + 12.2r = -0.7r -12.74 + -0.7r = -12.2r + 12.2r Combine like terms: -12.2r + 12.2r = 0.0 -12.74 + -0.7r = 0.0 Add '12.74' to each side of the equation. -12.74 + 12.74 + -0.7r = 0.0 + 12.74 Combine like terms: -12.74 + 12.74 = 0.00 0.00 + -0.7r = 0.0 + 12.74 -0.7r = 0.0 + 12.74 Combine like terms: 0.0 + 12.74 = 12.74 -0.7r = 12.74 Divide each side by '-0.7'. r = -18.2 Simplifying r = -18.2
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