3b-2(6+2b)=13+(-4)

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Solution for 3b-2(6+2b)=13+(-4) equation:


3b-2(6+2b)=13+(-4)

We simplify the equation to the form, which is simple to understand 
3b-2(6+2b)=13+(-4)

Reorder the terms in parentheses
3b+(-12-4b)=13+(-4)

Remove unnecessary parentheses
+3b-12-4b=+13+(-4+)

Remove unnecessary parentheses
+3b-12-4b=+13-4

We move all terms containing b to the left and all other terms to the right. 
+3b-4b=+13-4+12

We simplify left and right side of the equation. 
-1b=+21

We divide both sides of the equation by -1 to get b. 
b=-21

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