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Simplifying -13.5 = -3.5 + -1.25r Solving -13.5 = -3.5 + -1.25r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '1.25r' to each side of the equation. -13.5 + 1.25r = -3.5 + -1.25r + 1.25r Combine like terms: -1.25r + 1.25r = 0.00 -13.5 + 1.25r = -3.5 + 0.00 -13.5 + 1.25r = -3.5 Add '13.5' to each side of the equation. -13.5 + 13.5 + 1.25r = -3.5 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + 1.25r = -3.5 + 13.5 1.25r = -3.5 + 13.5 Combine like terms: -3.5 + 13.5 = 10 1.25r = 10 Divide each side by '1.25'. r = 8 Simplifying r = 8
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