10b+20=140

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Solution for 10b+20=140 equation: 



10b+20=140

We move all terms to the left:

10b+20-(140)=0

We add all the numbers together, and all the variables

10b-120=0

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

10b=120

b=120/10

b=12

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