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Simplifying 16x2 + -128r + -256 = 0 Reorder the terms: -256 + -128r + 16x2 = 0 Solving -256 + -128r + 16x2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '256' to each side of the equation. -256 + -128r + 256 + 16x2 = 0 + 256 Reorder the terms: -256 + 256 + -128r + 16x2 = 0 + 256 Combine like terms: -256 + 256 = 0 0 + -128r + 16x2 = 0 + 256 -128r + 16x2 = 0 + 256 Combine like terms: 0 + 256 = 256 -128r + 16x2 = 256 Add '-16x2' to each side of the equation. -128r + 16x2 + -16x2 = 256 + -16x2 Combine like terms: 16x2 + -16x2 = 0 -128r + 0 = 256 + -16x2 -128r = 256 + -16x2 Divide each side by '-128'. r = -2 + 0.125x2 Simplifying r = -2 + 0.125x2
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