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2/3u=30
We move all terms to the left:
2/3u-(30)=0
Domain of the equation: 3u!=0We multiply all the terms by the denominator
u!=0/3
u!=0
u∈R
-30*3u+2=0
Wy multiply elements
-90u+2=0
We move all terms containing u to the left, all other terms to the right
-90u=-2
u=-2/-90
u=1/45
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