B-9+4b=20

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Solution for B-9+4b=20 equation: 


Simplifying
B + -9 + 4b = 20

Reorder the terms:
-9 + B + 4b = 20

Solving
-9 + B + 4b = 20

Solving for variable 'B'.

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

Add '9' to each side of the equation.
-9 + B + 9 + 4b = 20 + 9

Reorder the terms:
-9 + 9 + B + 4b = 20 + 9

Combine like terms: -9 + 9 = 0
0 + B + 4b = 20 + 9
B + 4b = 20 + 9

Combine like terms: 20 + 9 = 29
B + 4b = 29

Add '-4b' to each side of the equation.
B + 4b + -4b = 29 + -4b

Combine like terms: 4b + -4b = 0
B + 0 = 29 + -4b
B = 29 + -4b

Simplifying
B = 29 + -4b

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