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30=11x-3
We move all terms to the left:
30-(11x-3)=0
We get rid of parentheses
-11x+3+30=0
We add all the numbers together, and all the variables
-11x+33=0
We move all terms containing x to the left, all other terms to the right
-11x=-33
x=-33/-11
x=+3
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