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Simplifying -13.18 = -2r Solving -13.18 = -2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '2r' to each side of the equation. -13.18 + 2r = -2r + 2r Combine like terms: -2r + 2r = 0 -13.18 + 2r = 0 Add '13.18' to each side of the equation. -13.18 + 13.18 + 2r = 0 + 13.18 Combine like terms: -13.18 + 13.18 = 0.00 0.00 + 2r = 0 + 13.18 2r = 0 + 13.18 Combine like terms: 0 + 13.18 = 13.18 2r = 13.18 Divide each side by '2'. r = 6.59 Simplifying r = 6.59
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