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Simplifying 2x + -19 + 3x = 21 Reorder the terms: -19 + 2x + 3x = 21 Combine like terms: 2x + 3x = 5x -19 + 5x = 21 Solving -19 + 5x = 21 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '19' to each side of the equation. -19 + 19 + 5x = 21 + 19 Combine like terms: -19 + 19 = 0 0 + 5x = 21 + 19 5x = 21 + 19 Combine like terms: 21 + 19 = 40 5x = 40 Divide each side by '5'. x = 8 Simplifying x = 8
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