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Simplifying -20x + -126 = -13x + -84 Reorder the terms: -126 + -20x = -13x + -84 Reorder the terms: -126 + -20x = -84 + -13x Solving -126 + -20x = -84 + -13x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13x' to each side of the equation. -126 + -20x + 13x = -84 + -13x + 13x Combine like terms: -20x + 13x = -7x -126 + -7x = -84 + -13x + 13x Combine like terms: -13x + 13x = 0 -126 + -7x = -84 + 0 -126 + -7x = -84 Add '126' to each side of the equation. -126 + 126 + -7x = -84 + 126 Combine like terms: -126 + 126 = 0 0 + -7x = -84 + 126 -7x = -84 + 126 Combine like terms: -84 + 126 = 42 -7x = 42 Divide each side by '-7'. x = -6 Simplifying x = -6
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