2(3b+4)-6=21

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Solution for 2(3b+4)-6=21 equation:


2(3b+4)-6=21

We simplify the equation to the form, which is simple to understand 
2(3b+4)-6=21

Reorder the terms in parentheses
+(+6b+8)-6=21

Remove unnecessary parentheses
+6b+8-6=+21

We move all terms containing b to the left and all other terms to the right. 
+6b=+21-8+6

We simplify left and right side of the equation. 
+6b=+19

We divide both sides of the equation by 6 to get b. 
b=3.16666666667

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