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Simplifying 4r + -1 = -69 Reorder the terms: -1 + 4r = -69 Solving -1 + 4r = -69 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + 4r = -69 + 1 Combine like terms: -1 + 1 = 0 0 + 4r = -69 + 1 4r = -69 + 1 Combine like terms: -69 + 1 = -68 4r = -68 Divide each side by '4'. r = -17 Simplifying r = -17
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