B=(4-2x)(-1-3x)-4(4-2x)

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Solution for B=(4-2x)(-1-3x)-4(4-2x) equation: 


Simplifying
B = (4 + -2x)(-1 + -3x) + -4(4 + -2x)

Multiply (4 + -2x) * (-1 + -3x)
B = (4(-1 + -3x) + -2x * (-1 + -3x)) + -4(4 + -2x)
B = ((-1 * 4 + -3x * 4) + -2x * (-1 + -3x)) + -4(4 + -2x)
B = ((-4 + -12x) + -2x * (-1 + -3x)) + -4(4 + -2x)
B = (-4 + -12x + (-1 * -2x + -3x * -2x)) + -4(4 + -2x)
B = (-4 + -12x + (2x + 6x2)) + -4(4 + -2x)

Combine like terms: -12x + 2x = -10x
B = (-4 + -10x + 6x2) + -4(4 + -2x)
B = -4 + -10x + 6x2 + (4 * -4 + -2x * -4)
B = -4 + -10x + 6x2 + (-16 + 8x)

Reorder the terms:
B = -4 + -16 + -10x + 8x + 6x2

Combine like terms: -4 + -16 = -20
B = -20 + -10x + 8x + 6x2

Combine like terms: -10x + 8x = -2x
B = -20 + -2x + 6x2

Solving
B = -20 + -2x + 6x2

Solving for variable 'B'.

Move all terms containing B to the left, all other terms to the right.

Simplifying
B = -20 + -2x + 6x2

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