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Simplifying 21 + 7x = 106 Solving 21 + 7x = 106 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -21 + 7x = 106 + -21 Combine like terms: 21 + -21 = 0 0 + 7x = 106 + -21 7x = 106 + -21 Combine like terms: 106 + -21 = 85 7x = 85 Divide each side by '7'. x = 12.14285714 Simplifying x = 12.14285714
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