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b+87+5b-93+2b+6b-68=180
We move all terms to the left:
b+87+5b-93+2b+6b-68-(180)=0
We add all the numbers together, and all the variables
14b-254=0
We move all terms containing b to the left, all other terms to the right
14b=254
b=254/14
b=18+1/7
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