0.9(9-b)=0

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Solution for 0.9(9-b)=0 equation: 



0.9(9-b)=0

We add all the numbers together, and all the variables

0.9(-1b+9)=0

We multiply parentheses

-0.9b+8.1=0

We move all terms containing b to the left, all other terms to the right

-0.9b=-8.1

b=-8.1/-0.9

b=+9

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