5-6(2+b)=b-21

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Solution for 5-6(2+b)=b-21 equation:


5-6(2+b)=b-21

We simplify the equation to the form, which is simple to understand 
5-6(2+b)=b-21

Reorder the terms in parentheses
5+(-12-6b)=b-21

Remove unnecessary parentheses
+5-12-6b=+b-21

We move all terms containing b to the left and all other terms to the right. 
-6b-1b=-21-5+12

We simplify left and right side of the equation. 
-7b=-14

We divide both sides of the equation by -7 to get b. 
b=2

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