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Simplifying 4r + -1 + 2r + -3 = -16 Reorder the terms: -1 + -3 + 4r + 2r = -16 Combine like terms: -1 + -3 = -4 -4 + 4r + 2r = -16 Combine like terms: 4r + 2r = 6r -4 + 6r = -16 Solving -4 + 6r = -16 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + 6r = -16 + 4 Combine like terms: -4 + 4 = 0 0 + 6r = -16 + 4 6r = -16 + 4 Combine like terms: -16 + 4 = -12 6r = -12 Divide each side by '6'. r = -2 Simplifying r = -2
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