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Simplifying -2r = 4(r + 4) + 2r Reorder the terms: -2r = 4(4 + r) + 2r -2r = (4 * 4 + r * 4) + 2r -2r = (16 + 4r) + 2r Combine like terms: 4r + 2r = 6r -2r = 16 + 6r Solving -2r = 16 + 6r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-6r' to each side of the equation. -2r + -6r = 16 + 6r + -6r Combine like terms: -2r + -6r = -8r -8r = 16 + 6r + -6r Combine like terms: 6r + -6r = 0 -8r = 16 + 0 -8r = 16 Divide each side by '-8'. r = -2 Simplifying r = -2
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