-4b=-b-9

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Solution for -4b=-b-9 equation: 


Simplifying
-4b = -1b + -9

Reorder the terms:
-4b = -9 + -1b

Solving
-4b = -9 + -1b

Solving for variable 'b'.

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

Add 'b' to each side of the equation.
-4b + b = -9 + -1b + b

Combine like terms: -4b + b = -3b
-3b = -9 + -1b + b

Combine like terms: -1b + b = 0
-3b = -9 + 0
-3b = -9

Divide each side by '-3'.
b = 3

Simplifying
b = 3

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