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Simplifying 12 = 6 + 21x Solving 12 = 6 + 21x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21x' to each side of the equation. 12 + -21x = 6 + 21x + -21x Combine like terms: 21x + -21x = 0 12 + -21x = 6 + 0 12 + -21x = 6 Add '-12' to each side of the equation. 12 + -12 + -21x = 6 + -12 Combine like terms: 12 + -12 = 0 0 + -21x = 6 + -12 -21x = 6 + -12 Combine like terms: 6 + -12 = -6 -21x = -6 Divide each side by '-21'. x = 0.2857142857 Simplifying x = 0.2857142857
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