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Simplifying r + -199 = 70 Reorder the terms: -199 + r = 70 Solving -199 + r = 70 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '199' to each side of the equation. -199 + 199 + r = 70 + 199 Combine like terms: -199 + 199 = 0 0 + r = 70 + 199 r = 70 + 199 Combine like terms: 70 + 199 = 269 r = 269 Simplifying r = 269
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