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Simplifying 2x3 + 21 = 5 Reorder the terms: 21 + 2x3 = 5 Solving 21 + 2x3 = 5 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 + 2x3 = 5 + -21 Combine like terms: 21 + -21 = 0 0 + 2x3 = 5 + -21 2x3 = 5 + -21 Combine like terms: 5 + -21 = -16 2x3 = -16 Divide each side by '2'. x3 = -8 Simplifying x3 = -8 Reorder the terms: 8 + x3 = -8 + 8 Combine like terms: -8 + 8 = 0 8 + x3 = 0 The solution to this equation could not be determined.
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