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Simplifying 7r + -15 = -50 + 2r Reorder the terms: -15 + 7r = -50 + 2r Solving -15 + 7r = -50 + 2r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-2r' to each side of the equation. -15 + 7r + -2r = -50 + 2r + -2r Combine like terms: 7r + -2r = 5r -15 + 5r = -50 + 2r + -2r Combine like terms: 2r + -2r = 0 -15 + 5r = -50 + 0 -15 + 5r = -50 Add '15' to each side of the equation. -15 + 15 + 5r = -50 + 15 Combine like terms: -15 + 15 = 0 0 + 5r = -50 + 15 5r = -50 + 15 Combine like terms: -50 + 15 = -35 5r = -35 Divide each side by '5'. r = -7 Simplifying r = -7
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