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Simplifying 7r + -20 = -26 + 4r Reorder the terms: -20 + 7r = -26 + 4r Solving -20 + 7r = -26 + 4r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-4r' to each side of the equation. -20 + 7r + -4r = -26 + 4r + -4r Combine like terms: 7r + -4r = 3r -20 + 3r = -26 + 4r + -4r Combine like terms: 4r + -4r = 0 -20 + 3r = -26 + 0 -20 + 3r = -26 Add '20' to each side of the equation. -20 + 20 + 3r = -26 + 20 Combine like terms: -20 + 20 = 0 0 + 3r = -26 + 20 3r = -26 + 20 Combine like terms: -26 + 20 = -6 3r = -6 Divide each side by '3'. r = -2 Simplifying r = -2
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