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Simplifying x2 = 21 + -4a Solving x2 = 21 + -4a Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Simplifying x2 = 21 + -4a Reorder the terms: -21 + 4a + x2 = 21 + -4a + -21 + 4a Reorder the terms: -21 + 4a + x2 = 21 + -21 + -4a + 4a Combine like terms: 21 + -21 = 0 -21 + 4a + x2 = 0 + -4a + 4a -21 + 4a + x2 = -4a + 4a Combine like terms: -4a + 4a = 0 -21 + 4a + x2 = 0 The solution to this equation could not be determined.
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