[6b-3]=21

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Solution for [6b-3]=21 equation:


[6b-3]=21

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

Remove unnecessary parentheses
6b-3=21

We move all terms containing b to the left and all other terms to the right. 
+6b=+21+3

We simplify left and right side of the equation. 
+6b=+24

We divide both sides of the equation by 6 to get b. 
b=4

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