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Simplifying -12 + 21x = 0 Solving -12 + 21x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + 21x = 0 + 12 Combine like terms: -12 + 12 = 0 0 + 21x = 0 + 12 21x = 0 + 12 Combine like terms: 0 + 12 = 12 21x = 12 Divide each side by '21'. x = 0.5714285714 Simplifying x = 0.5714285714
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