9-4b=-9-2b

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Solution for 9-4b=-9-2b equation: 



9-4b=-9-2b

We move all terms to the left:

9-4b-(-9-2b)=0

We add all the numbers together, and all the variables

-4b-(-2b-9)+9=0

We get rid of parentheses

-4b+2b+9+9=0

We add all the numbers together, and all the variables

-2b+18=0

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

-2b=-18

b=-18/-2

b=+9

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