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Simplifying 168 = 21x Solving 168 = 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. 168 + -21x = 21x + -21x Combine like terms: 21x + -21x = 0 168 + -21x = 0 Add '-168' to each side of the equation. 168 + -168 + -21x = 0 + -168 Combine like terms: 168 + -168 = 0 0 + -21x = 0 + -168 -21x = 0 + -168 Combine like terms: 0 + -168 = -168 -21x = -168 Divide each side by '-21'. x = 8 Simplifying x = 8
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