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Simplifying 5x2 + -21z + 4 = 0 Reorder the terms: 4 + 5x2 + -21z = 0 Solving 4 + 5x2 + -21z = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + 5x2 + -4 + -21z = 0 + -4 Reorder the terms: 4 + -4 + 5x2 + -21z = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 5x2 + -21z = 0 + -4 5x2 + -21z = 0 + -4 Combine like terms: 0 + -4 = -4 5x2 + -21z = -4 Add '21z' to each side of the equation. 5x2 + -21z + 21z = -4 + 21z Combine like terms: -21z + 21z = 0 5x2 + 0 = -4 + 21z 5x2 = -4 + 21z Divide each side by '5'. x2 = -0.8 + 4.2z Simplifying x2 = -0.8 + 4.2z Reorder the terms: 0.8 + x2 + -4.2z = -0.8 + 4.2z + 0.8 + -4.2z Reorder the terms: 0.8 + x2 + -4.2z = -0.8 + 0.8 + 4.2z + -4.2z Combine like terms: -0.8 + 0.8 = 0.0 0.8 + x2 + -4.2z = 0.0 + 4.2z + -4.2z 0.8 + x2 + -4.2z = 4.2z + -4.2z Combine like terms: 4.2z + -4.2z = 0.0 0.8 + x2 + -4.2z = 0.0 The solution to this equation could not be determined.
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