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Simplifying 2x3 + x2 + -13x + a = 0 Reorder the terms: a + -13x + x2 + 2x3 = 0 Solving a + -13x + x2 + 2x3 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '13x' to each side of the equation. a + -13x + x2 + 13x + 2x3 = 0 + 13x Reorder the terms: a + -13x + 13x + x2 + 2x3 = 0 + 13x Combine like terms: -13x + 13x = 0 a + 0 + x2 + 2x3 = 0 + 13x a + x2 + 2x3 = 0 + 13x Remove the zero: a + x2 + 2x3 = 13x Add '-1x2' to each side of the equation. a + x2 + -1x2 + 2x3 = 13x + -1x2 Combine like terms: x2 + -1x2 = 0 a + 0 + 2x3 = 13x + -1x2 a + 2x3 = 13x + -1x2 Add '-2x3' to each side of the equation. a + 2x3 + -2x3 = 13x + -1x2 + -2x3 Combine like terms: 2x3 + -2x3 = 0 a + 0 = 13x + -1x2 + -2x3 a = 13x + -1x2 + -2x3 Simplifying a = 13x + -1x2 + -2x3
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