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Simplifying -8(2 + -1r) = -8r (2 * -8 + -1r * -8) = -8r (-16 + 8r) = -8r Solving -16 + 8r = -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. -16 + 8r + 8r = -8r + 8r Combine like terms: 8r + 8r = 16r -16 + 16r = -8r + 8r Combine like terms: -8r + 8r = 0 -16 + 16r = 0 Add '16' to each side of the equation. -16 + 16 + 16r = 0 + 16 Combine like terms: -16 + 16 = 0 0 + 16r = 0 + 16 16r = 0 + 16 Combine like terms: 0 + 16 = 16 16r = 16 Divide each side by '16'. r = 1 Simplifying r = 1
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