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(3a-1)=134
We move all terms to the left:
(3a-1)-(134)=0
We get rid of parentheses
3a-1-134=0
We add all the numbers together, and all the variables
3a-135=0
We move all terms containing a to the left, all other terms to the right
3a=135
a=135/3
a=45
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