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Simplifying 2r + 2 = 4r + 8 Reorder the terms: 2 + 2r = 4r + 8 Reorder the terms: 2 + 2r = 8 + 4r Solving 2 + 2r = 8 + 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. 2 + 2r + -4r = 8 + 4r + -4r Combine like terms: 2r + -4r = -2r 2 + -2r = 8 + 4r + -4r Combine like terms: 4r + -4r = 0 2 + -2r = 8 + 0 2 + -2r = 8 Add '-2' to each side of the equation. 2 + -2 + -2r = 8 + -2 Combine like terms: 2 + -2 = 0 0 + -2r = 8 + -2 -2r = 8 + -2 Combine like terms: 8 + -2 = 6 -2r = 6 Divide each side by '-2'. r = -3 Simplifying r = -3
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