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Simplifying 2x + 5x + -9 = 19 Reorder the terms: -9 + 2x + 5x = 19 Combine like terms: 2x + 5x = 7x -9 + 7x = 19 Solving -9 + 7x = 19 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + 7x = 19 + 9 Combine like terms: -9 + 9 = 0 0 + 7x = 19 + 9 7x = 19 + 9 Combine like terms: 19 + 9 = 28 7x = 28 Divide each side by '7'. x = 4 Simplifying x = 4
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