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