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Simplifying -4(r + 4) = -49 Reorder the terms: -4(4 + r) = -49 (4 * -4 + r * -4) = -49 (-16 + -4r) = -49 Solving -16 + -4r = -49 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '16' to each side of the equation. -16 + 16 + -4r = -49 + 16 Combine like terms: -16 + 16 = 0 0 + -4r = -49 + 16 -4r = -49 + 16 Combine like terms: -49 + 16 = -33 -4r = -33 Divide each side by '-4'. r = 8.25 Simplifying r = 8.25
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