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Simplifying 7q + 8r + -6r = 0 Combine like terms: 8r + -6r = 2r 7q + 2r = 0 Solving 7q + 2r = 0 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '-2r' to each side of the equation. 7q + 2r + -2r = 0 + -2r Combine like terms: 2r + -2r = 0 7q + 0 = 0 + -2r 7q = 0 + -2r Remove the zero: 7q = -2r Divide each side by '7'. q = -0.2857142857r Simplifying q = -0.2857142857r

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