XA-B=-2X

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Solution for XA-B=-2X equation: 


Simplifying
XA + -1B = -2X

Solving
AX + -1B = -2X

Solving for variable 'A'.

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

Add 'B' to each side of the equation.
AX + -1B + B = B + -2X

Combine like terms: -1B + B = 0
AX + 0 = B + -2X
AX = B + -2X

Divide each side by 'X'.
A = BX-1 + -2

Simplifying
A = BX-1 + -2

Reorder the terms:
A = -2 + BX-1

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