-9b=-10b-9

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Solution for -9b=-10b-9 equation: 


Simplifying
-9b = -10b + -9

Reorder the terms:
-9b = -9 + -10b

Solving
-9b = -9 + -10b

Solving for variable 'b'.

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

Add '10b' to each side of the equation.
-9b + 10b = -9 + -10b + 10b

Combine like terms: -9b + 10b = 1b
1b = -9 + -10b + 10b

Combine like terms: -10b + 10b = 0
1b = -9 + 0
1b = -9

Divide each side by '1'.
b = -9

Simplifying
b = -9

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