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Simplifying -9.4 = 7.2r + -3.7(r + 2) Reorder the terms: -9.4 = 7.2r + -3.7(2 + r) -9.4 = 7.2r + (2 * -3.7 + r * -3.7) -9.4 = 7.2r + (-7.4 + -3.7r) Reorder the terms: -9.4 = -7.4 + 7.2r + -3.7r Combine like terms: 7.2r + -3.7r = 3.5r -9.4 = -7.4 + 3.5r Solving -9.4 = -7.4 + 3.5r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-3.5r' to each side of the equation. -9.4 + -3.5r = -7.4 + 3.5r + -3.5r Combine like terms: 3.5r + -3.5r = 0.0 -9.4 + -3.5r = -7.4 + 0.0 -9.4 + -3.5r = -7.4 Add '9.4' to each side of the equation. -9.4 + 9.4 + -3.5r = -7.4 + 9.4 Combine like terms: -9.4 + 9.4 = 0.0 0.0 + -3.5r = -7.4 + 9.4 -3.5r = -7.4 + 9.4 Combine like terms: -7.4 + 9.4 = 2 -3.5r = 2 Divide each side by '-3.5'. r = -0.5714285714 Simplifying r = -0.5714285714
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