21b=b+85

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Solution for 21b=b+85 equation:


21b=b+85

We simplify the equation to the form, which is simple to understand 
21b=b+85

We move all terms containing b to the left and all other terms to the right. 
+21b-1b=+85

We simplify left and right side of the equation. 
+20b=+85

We divide both sides of the equation by 20 to get b. 
b=4.25

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