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Simplifying 2x + 5(2x + -1) = -31 Reorder the terms: 2x + 5(-1 + 2x) = -31 2x + (-1 * 5 + 2x * 5) = -31 2x + (-5 + 10x) = -31 Reorder the terms: -5 + 2x + 10x = -31 Combine like terms: 2x + 10x = 12x -5 + 12x = -31 Solving -5 + 12x = -31 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + 12x = -31 + 5 Combine like terms: -5 + 5 = 0 0 + 12x = -31 + 5 12x = -31 + 5 Combine like terms: -31 + 5 = -26 12x = -26 Divide each side by '12'. x = -2.166666667 Simplifying x = -2.166666667
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