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11=5a+30
We move all terms to the left:
11-(5a+30)=0
We get rid of parentheses
-5a-30+11=0
We add all the numbers together, and all the variables
-5a-19=0
We move all terms containing a to the left, all other terms to the right
-5a=19
a=19/-5
a=-3+4/5
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