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15/2=5u
We move all terms to the left:
15/2-(5u)=0
We multiply all the terms by the denominator
-5u*2+15=0
Wy multiply elements
-10u+15=0
We move all terms containing u to the left, all other terms to the right
-10u=-15
u=-15/-10
u=1+1/2
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