7b-21-8b=2

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Solution for 7b-21-8b=2 equation:


7b-21-8b=2

We simplify the equation to the form, which is simple to understand 
7b-21-8b=2

We move all terms containing b to the left and all other terms to the right. 
+7b-8b=+2+21

We simplify left and right side of the equation. 
-1b=+23

We divide both sides of the equation by -1 to get b. 
b=-23

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