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Simplifying -15 + -20 = -13x + 40 Combine like terms: -15 + -20 = -35 -35 = -13x + 40 Reorder the terms: -35 = 40 + -13x Solving -35 = 40 + -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. -35 + 13x = 40 + -13x + 13x Combine like terms: -13x + 13x = 0 -35 + 13x = 40 + 0 -35 + 13x = 40 Add '35' to each side of the equation. -35 + 35 + 13x = 40 + 35 Combine like terms: -35 + 35 = 0 0 + 13x = 40 + 35 13x = 40 + 35 Combine like terms: 40 + 35 = 75 13x = 75 Divide each side by '13'. x = 5.769230769 Simplifying x = 5.769230769
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