b+20=2b-30

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Solution for b+20=2b-30 equation:


b+20=2b-30

We simplify the equation to the form, which is simple to understand 
b+20=2b-30

We move all terms containing b to the left and all other terms to the right. 
+1b-2b=-30-20

We simplify left and right side of the equation. 
-1b=-50

We divide both sides of the equation by -1 to get b. 
b=50

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