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Simplifying 7r + -16 = 2r + -1 Reorder the terms: -16 + 7r = 2r + -1 Reorder the terms: -16 + 7r = -1 + 2r Solving -16 + 7r = -1 + 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. -16 + 7r + -2r = -1 + 2r + -2r Combine like terms: 7r + -2r = 5r -16 + 5r = -1 + 2r + -2r Combine like terms: 2r + -2r = 0 -16 + 5r = -1 + 0 -16 + 5r = -1 Add '16' to each side of the equation. -16 + 16 + 5r = -1 + 16 Combine like terms: -16 + 16 = 0 0 + 5r = -1 + 16 5r = -1 + 16 Combine like terms: -1 + 16 = 15 5r = 15 Divide each side by '5'. r = 3 Simplifying r = 3
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