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Simplifying 9x + -21 = 3x + 2 Reorder the terms: -21 + 9x = 3x + 2 Reorder the terms: -21 + 9x = 2 + 3x Solving -21 + 9x = 2 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. -21 + 9x + -3x = 2 + 3x + -3x Combine like terms: 9x + -3x = 6x -21 + 6x = 2 + 3x + -3x Combine like terms: 3x + -3x = 0 -21 + 6x = 2 + 0 -21 + 6x = 2 Add '21' to each side of the equation. -21 + 21 + 6x = 2 + 21 Combine like terms: -21 + 21 = 0 0 + 6x = 2 + 21 6x = 2 + 21 Combine like terms: 2 + 21 = 23 6x = 23 Divide each side by '6'. x = 3.833333333 Simplifying x = 3.833333333
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