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Simplifying -2(-8r + 4) + -5r = -85 Reorder the terms: -2(4 + -8r) + -5r = -85 (4 * -2 + -8r * -2) + -5r = -85 (-8 + 16r) + -5r = -85 Combine like terms: 16r + -5r = 11r -8 + 11r = -85 Solving -8 + 11r = -85 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + 11r = -85 + 8 Combine like terms: -8 + 8 = 0 0 + 11r = -85 + 8 11r = -85 + 8 Combine like terms: -85 + 8 = -77 11r = -77 Divide each side by '11'. r = -7 Simplifying r = -7
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