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