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Simplifying -9 + -3(2q + -1) = -81 Reorder the terms: -9 + -3(-1 + 2q) = -81 -9 + (-1 * -3 + 2q * -3) = -81 -9 + (3 + -6q) = -81 Combine like terms: -9 + 3 = -6 -6 + -6q = -81 Solving -6 + -6q = -81 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -6q = -81 + 6 Combine like terms: -6 + 6 = 0 0 + -6q = -81 + 6 -6q = -81 + 6 Combine like terms: -81 + 6 = -75 -6q = -75 Divide each side by '-6'. q = 12.5 Simplifying q = 12.5
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