xA-B=3x

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Solution for xA-B=3x equation:


Simplifying
xA + -1B = 3x

Reorder the terms:
-1B + xA = 3x

Solving
-1B + xA = 3x

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.
-1B + xA + -1xA = 3x + -1xA

Combine like terms: xA + -1xA = 0
-1B + 0 = 3x + -1xA
-1B = 3x + -1xA

Divide each side by '-1'.
B = -3x + xA

Simplifying
B = -3x + xA

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