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Simplifying x3 + 3x2 + -2a + 5 = 0 Reorder the terms: 5 + -2a + 3x2 + x3 = 0 Solving 5 + -2a + 3x2 + x3 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -2a + 3x2 + -5 + x3 = 0 + -5 Reorder the terms: 5 + -5 + -2a + 3x2 + x3 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2a + 3x2 + x3 = 0 + -5 -2a + 3x2 + x3 = 0 + -5 Combine like terms: 0 + -5 = -5 -2a + 3x2 + x3 = -5 Add '-3x2' to each side of the equation. -2a + 3x2 + -3x2 + x3 = -5 + -3x2 Combine like terms: 3x2 + -3x2 = 0 -2a + 0 + x3 = -5 + -3x2 -2a + x3 = -5 + -3x2 Add '-1x3' to each side of the equation. -2a + x3 + -1x3 = -5 + -3x2 + -1x3 Combine like terms: x3 + -1x3 = 0 -2a + 0 = -5 + -3x2 + -1x3 -2a = -5 + -3x2 + -1x3 Divide each side by '-2'. a = 2.5 + 1.5x2 + 0.5x3 Simplifying a = 2.5 + 1.5x2 + 0.5x3
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