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Simplifying 7z2 + 28z + -1az + -4a = 0 Reorder the terms: -4a + -1az + 28z + 7z2 = 0 Solving -4a + -1az + 28z + 7z2 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-28z' to each side of the equation. -4a + -1az + 28z + -28z + 7z2 = 0 + -28z Combine like terms: 28z + -28z = 0 -4a + -1az + 0 + 7z2 = 0 + -28z -4a + -1az + 7z2 = 0 + -28z Remove the zero: -4a + -1az + 7z2 = -28z Add '-7z2' to each side of the equation. -4a + -1az + 7z2 + -7z2 = -28z + -7z2 Combine like terms: 7z2 + -7z2 = 0 -4a + -1az + 0 = -28z + -7z2 -4a + -1az = -28z + -7z2 Reorder the terms: -4a + -1az + 28z + 7z2 = -28z + 28z + -7z2 + 7z2 Combine like terms: -28z + 28z = 0 -4a + -1az + 28z + 7z2 = 0 + -7z2 + 7z2 -4a + -1az + 28z + 7z2 = -7z2 + 7z2 Combine like terms: -7z2 + 7z2 = 0 -4a + -1az + 28z + 7z2 = 0 The solution to this equation could not be determined.
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