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Simplifying -0.68 + 2r = 1.2r + 2.8 Reorder the terms: -0.68 + 2r = 2.8 + 1.2r Solving -0.68 + 2r = 2.8 + 1.2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1.2r' to each side of the equation. -0.68 + 2r + -1.2r = 2.8 + 1.2r + -1.2r Combine like terms: 2r + -1.2r = 0.8r -0.68 + 0.8r = 2.8 + 1.2r + -1.2r Combine like terms: 1.2r + -1.2r = 0.0 -0.68 + 0.8r = 2.8 + 0.0 -0.68 + 0.8r = 2.8 Add '0.68' to each side of the equation. -0.68 + 0.68 + 0.8r = 2.8 + 0.68 Combine like terms: -0.68 + 0.68 = 0.00 0.00 + 0.8r = 2.8 + 0.68 0.8r = 2.8 + 0.68 Combine like terms: 2.8 + 0.68 = 3.48 0.8r = 3.48 Divide each side by '0.8'. r = 4.35 Simplifying r = 4.35
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