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Simplifying 2x4 + 7x3 + 6x2 + Ax + B = 0 Reorder the terms: B + xA + 6x2 + 7x3 + 2x4 = 0 Solving B + xA + 6x2 + 7x3 + 2x4 = 0 Solving for variable 'B'. Move all terms containing B to the left, all other terms to the right. Add '-1xA' to each side of the equation. B + xA + 6x2 + 7x3 + -1xA + 2x4 = 0 + -1xA Reorder the terms: B + xA + -1xA + 6x2 + 7x3 + 2x4 = 0 + -1xA Combine like terms: xA + -1xA = 0 B + 0 + 6x2 + 7x3 + 2x4 = 0 + -1xA B + 6x2 + 7x3 + 2x4 = 0 + -1xA Remove the zero: B + 6x2 + 7x3 + 2x4 = -1xA Add '-6x2' to each side of the equation. B + 6x2 + 7x3 + -6x2 + 2x4 = -1xA + -6x2 Reorder the terms: B + 6x2 + -6x2 + 7x3 + 2x4 = -1xA + -6x2 Combine like terms: 6x2 + -6x2 = 0 B + 0 + 7x3 + 2x4 = -1xA + -6x2 B + 7x3 + 2x4 = -1xA + -6x2 Add '-7x3' to each side of the equation. B + 7x3 + -7x3 + 2x4 = -1xA + -6x2 + -7x3 Combine like terms: 7x3 + -7x3 = 0 B + 0 + 2x4 = -1xA + -6x2 + -7x3 B + 2x4 = -1xA + -6x2 + -7x3 Add '-2x4' to each side of the equation. B + 2x4 + -2x4 = -1xA + -6x2 + -7x3 + -2x4 Combine like terms: 2x4 + -2x4 = 0 B + 0 = -1xA + -6x2 + -7x3 + -2x4 B = -1xA + -6x2 + -7x3 + -2x4 Simplifying B = -1xA + -6x2 + -7x3 + -2x4
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