[-b-3]-9=3

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Solution for [-b-3]-9=3 equation:


[-b-3]-9=3

We simplify the equation to the form, which is simple to understand 
(-b-3)-9=3

Remove unnecessary parentheses
-b-3-9=3

We move all terms containing b to the left and all other terms to the right. 
-1b=+3+3+9

We simplify left and right side of the equation. 
-1b=+15

We divide both sides of the equation by -1 to get b. 
b=-15

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