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Simplifying -1.05 + -0.21r = 0.14r + 2.1 Reorder the terms: -1.05 + -0.21r = 2.1 + 0.14r Solving -1.05 + -0.21r = 2.1 + 0.14r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-0.14r' to each side of the equation. -1.05 + -0.21r + -0.14r = 2.1 + 0.14r + -0.14r Combine like terms: -0.21r + -0.14r = -0.35r -1.05 + -0.35r = 2.1 + 0.14r + -0.14r Combine like terms: 0.14r + -0.14r = 0.00 -1.05 + -0.35r = 2.1 + 0.00 -1.05 + -0.35r = 2.1 Add '1.05' to each side of the equation. -1.05 + 1.05 + -0.35r = 2.1 + 1.05 Combine like terms: -1.05 + 1.05 = 0.00 0.00 + -0.35r = 2.1 + 1.05 -0.35r = 2.1 + 1.05 Combine like terms: 2.1 + 1.05 = 3.15 -0.35r = 3.15 Divide each side by '-0.35'. r = -9 Simplifying r = -9
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