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Simplifying (a + -1) * x2 + -4ax + 4a + 7 = 0 Reorder the terms: (-1 + a) * x2 + -4ax + 4a + 7 = 0 Reorder the terms for easier multiplication: x2(-1 + a) + -4ax + 4a + 7 = 0 (-1 * x2 + a * x2) + -4ax + 4a + 7 = 0 Reorder the terms: (ax2 + -1x2) + -4ax + 4a + 7 = 0 (ax2 + -1x2) + -4ax + 4a + 7 = 0 Reorder the terms: 7 + 4a + -4ax + ax2 + -1x2 = 0 Solving 7 + 4a + -4ax + ax2 + -1x2 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + 4a + -4ax + ax2 + -7 + -1x2 = 0 + -7 Reorder the terms: 7 + -7 + 4a + -4ax + ax2 + -1x2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 4a + -4ax + ax2 + -1x2 = 0 + -7 4a + -4ax + ax2 + -1x2 = 0 + -7 Combine like terms: 0 + -7 = -7 4a + -4ax + ax2 + -1x2 = -7 Add 'x2' to each side of the equation. 4a + -4ax + ax2 + -1x2 + x2 = -7 + x2 Combine like terms: -1x2 + x2 = 0 4a + -4ax + ax2 + 0 = -7 + x2 4a + -4ax + ax2 = -7 + x2 Reorder the terms: 7 + 4a + -4ax + ax2 + -1x2 = -7 + x2 + 7 + -1x2 Reorder the terms: 7 + 4a + -4ax + ax2 + -1x2 = -7 + 7 + x2 + -1x2 Combine like terms: -7 + 7 = 0 7 + 4a + -4ax + ax2 + -1x2 = 0 + x2 + -1x2 7 + 4a + -4ax + ax2 + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 7 + 4a + -4ax + ax2 + -1x2 = 0 The solution to this equation could not be determined.
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