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Simplifying -140 = -4r Solving -140 = -4r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '4r' to each side of the equation. -140 + 4r = -4r + 4r Combine like terms: -4r + 4r = 0 -140 + 4r = 0 Add '140' to each side of the equation. -140 + 140 + 4r = 0 + 140 Combine like terms: -140 + 140 = 0 0 + 4r = 0 + 140 4r = 0 + 140 Combine like terms: 0 + 140 = 140 4r = 140 Divide each side by '4'. r = 35 Simplifying r = 35
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