3b-15=69

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Solution for 3b-15=69 equation: 



3b-15=69

We move all terms to the left:

3b-15-(69)=0

We add all the numbers together, and all the variables

3b-84=0

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

3b=84

b=84/3

b=28

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