20=5b+8-b

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Solution for 20=5b+8-b equation:


20=5b+8-b

We simplify the equation to the form, which is simple to understand 
20=5b+8-b

We move all terms containing b to the left and all other terms to the right. 
-5b+1b=+8-20

We simplify left and right side of the equation. 
-4b=-12

We divide both sides of the equation by -4 to get b. 
b=3

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