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Simplifying 5r + -16 = -20 + 7r Reorder the terms: -16 + 5r = -20 + 7r Solving -16 + 5r = -20 + 7r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-7r' to each side of the equation. -16 + 5r + -7r = -20 + 7r + -7r Combine like terms: 5r + -7r = -2r -16 + -2r = -20 + 7r + -7r Combine like terms: 7r + -7r = 0 -16 + -2r = -20 + 0 -16 + -2r = -20 Add '16' to each side of the equation. -16 + 16 + -2r = -20 + 16 Combine like terms: -16 + 16 = 0 0 + -2r = -20 + 16 -2r = -20 + 16 Combine like terms: -20 + 16 = -4 -2r = -4 Divide each side by '-2'. r = 2 Simplifying r = 2
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