-9(b-9)=

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Solution for -9(b-9)= equation: 


Simplifying
-9(b + -9) = 0

Reorder the terms:
-9(-9 + b) = 0
(-9 * -9 + b * -9) = 0
(81 + -9b) = 0

Solving
81 + -9b = 0

Solving for variable 'b'.

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

Add '-81' to each side of the equation.
81 + -81 + -9b = 0 + -81

Combine like terms: 81 + -81 = 0
0 + -9b = 0 + -81
-9b = 0 + -81

Combine like terms: 0 + -81 = -81
-9b = -81

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

Simplifying
b = 9

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