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Simplifying -21 + -3x = 14 + -9x Solving -21 + -3x = 14 + -9x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9x' to each side of the equation. -21 + -3x + 9x = 14 + -9x + 9x Combine like terms: -3x + 9x = 6x -21 + 6x = 14 + -9x + 9x Combine like terms: -9x + 9x = 0 -21 + 6x = 14 + 0 -21 + 6x = 14 Add '21' to each side of the equation. -21 + 21 + 6x = 14 + 21 Combine like terms: -21 + 21 = 0 0 + 6x = 14 + 21 6x = 14 + 21 Combine like terms: 14 + 21 = 35 6x = 35 Divide each side by '6'. x = 5.833333333 Simplifying x = 5.833333333
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