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Simplifying 3x + 2(2x + -2) = -81 Reorder the terms: 3x + 2(-2 + 2x) = -81 3x + (-2 * 2 + 2x * 2) = -81 3x + (-4 + 4x) = -81 Reorder the terms: -4 + 3x + 4x = -81 Combine like terms: 3x + 4x = 7x -4 + 7x = -81 Solving -4 + 7x = -81 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + 7x = -81 + 4 Combine like terms: -4 + 4 = 0 0 + 7x = -81 + 4 7x = -81 + 4 Combine like terms: -81 + 4 = -77 7x = -77 Divide each side by '7'. x = -11 Simplifying x = -11
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