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Simplifying -8x + -4 + -5x = -31 Reorder the terms: -4 + -8x + -5x = -31 Combine like terms: -8x + -5x = -13x -4 + -13x = -31 Solving -4 + -13x = -31 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 + -13x = -31 + 4 Combine like terms: -4 + 4 = 0 0 + -13x = -31 + 4 -13x = -31 + 4 Combine like terms: -31 + 4 = -27 -13x = -27 Divide each side by '-13'. x = 2.076923077 Simplifying x = 2.076923077
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