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Simplifying -13r + -6r + -7 = 14 Reorder the terms: -7 + -13r + -6r = 14 Combine like terms: -13r + -6r = -19r -7 + -19r = 14 Solving -7 + -19r = 14 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -19r = 14 + 7 Combine like terms: -7 + 7 = 0 0 + -19r = 14 + 7 -19r = 14 + 7 Combine like terms: 14 + 7 = 21 -19r = 21 Divide each side by '-19'. r = -1.105263158 Simplifying r = -1.105263158
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