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Simplifying -8 = 2x + r Reorder the terms: -8 = r + 2x Solving -8 = r + 2x Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-1r' to each side of the equation. -8 + -1r = r + -1r + 2x Combine like terms: r + -1r = 0 -8 + -1r = 0 + 2x -8 + -1r = 2x Add '8' to each side of the equation. -8 + 8 + -1r = 8 + 2x Combine like terms: -8 + 8 = 0 0 + -1r = 8 + 2x -1r = 8 + 2x Divide each side by '-1'. r = -8 + -2x Simplifying r = -8 + -2x
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