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3/4k=30
We move all terms to the left:
3/4k-(30)=0
Domain of the equation: 4k!=0We multiply all the terms by the denominator
k!=0/4
k!=0
k∈R
-30*4k+3=0
Wy multiply elements
-120k+3=0
We move all terms containing k to the left, all other terms to the right
-120k=-3
k=-3/-120
k=1/40
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