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Simplifying 88 = -4(2r + 8) Reorder the terms: 88 = -4(8 + 2r) 88 = (8 * -4 + 2r * -4) 88 = (-32 + -8r) Solving 88 = -32 + -8r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '8r' to each side of the equation. 88 + 8r = -32 + -8r + 8r Combine like terms: -8r + 8r = 0 88 + 8r = -32 + 0 88 + 8r = -32 Add '-88' to each side of the equation. 88 + -88 + 8r = -32 + -88 Combine like terms: 88 + -88 = 0 0 + 8r = -32 + -88 8r = -32 + -88 Combine like terms: -32 + -88 = -120 8r = -120 Divide each side by '8'. r = -15 Simplifying r = -15
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