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Simplifying 4r + -3 + 2r + 7 = 0 Reorder the terms: -3 + 7 + 4r + 2r = 0 Combine like terms: -3 + 7 = 4 4 + 4r + 2r = 0 Combine like terms: 4r + 2r = 6r 4 + 6r = 0 Solving 4 + 6r = 0 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 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 6r = 0 + -4 6r = 0 + -4 Combine like terms: 0 + -4 = -4 6r = -4 Divide each side by '6'. r = -0.6666666667 Simplifying r = -0.6666666667
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