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