2b-40=420

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Solution for 2b-40=420 equation: 



2b-40=420

We move all terms to the left:

2b-40-(420)=0

We add all the numbers together, and all the variables

2b-460=0

We move all terms containing b to the left, all other terms to the right

2b=460

b=460/2

b=230

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