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Simplifying -4.26 + -2.2r = r + 7.9 Reorder the terms: -4.26 + -2.2r = 7.9 + r Solving -4.26 + -2.2r = 7.9 + r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1r' to each side of the equation. -4.26 + -2.2r + -1r = 7.9 + r + -1r Combine like terms: -2.2r + -1r = -3.2r -4.26 + -3.2r = 7.9 + r + -1r Combine like terms: r + -1r = 0 -4.26 + -3.2r = 7.9 + 0 -4.26 + -3.2r = 7.9 Add '4.26' to each side of the equation. -4.26 + 4.26 + -3.2r = 7.9 + 4.26 Combine like terms: -4.26 + 4.26 = 0.00 0.00 + -3.2r = 7.9 + 4.26 -3.2r = 7.9 + 4.26 Combine like terms: 7.9 + 4.26 = 12.16 -3.2r = 12.16 Divide each side by '-3.2'. r = -3.8 Simplifying r = -3.8
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