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Simplifying -4(4r + 2) = 0 Reorder the terms: -4(2 + 4r) = 0 (2 * -4 + 4r * -4) = 0 (-8 + -16r) = 0 Solving -8 + -16r = 0 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 + -16r = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -16r = 0 + 8 -16r = 0 + 8 Combine like terms: 0 + 8 = 8 -16r = 8 Divide each side by '-16'. r = -0.5 Simplifying r = -0.5
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