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