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Simplifying 2x2 + 7x + -1a = 0 Reorder the terms: -1a + 7x + 2x2 = 0 Solving -1a + 7x + 2x2 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-7x' to each side of the equation. -1a + 7x + -7x + 2x2 = 0 + -7x Combine like terms: 7x + -7x = 0 -1a + 0 + 2x2 = 0 + -7x -1a + 2x2 = 0 + -7x Remove the zero: -1a + 2x2 = -7x Add '-2x2' to each side of the equation. -1a + 2x2 + -2x2 = -7x + -2x2 Combine like terms: 2x2 + -2x2 = 0 -1a + 0 = -7x + -2x2 -1a = -7x + -2x2 Divide each side by '-1'. a = 7x + 2x2 Simplifying a = 7x + 2x2
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