B-.4b=9

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Solution for B-.4b=9 equation: 


Simplifying
B + -0.4b = 9

Solving
B + -0.4b = 9

Solving for variable 'B'.

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

Add '0.4b' to each side of the equation.
B + -0.4b + 0.4b = 9 + 0.4b

Combine like terms: -0.4b + 0.4b = 0.0
B + 0.0 = 9 + 0.4b
B = 9 + 0.4b

Simplifying
B = 9 + 0.4b

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