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2/5k-3=4
We move all terms to the left:
2/5k-3-(4)=0
Domain of the equation: 5k!=0We add all the numbers together, and all the variables
k!=0/5
k!=0
k∈R
2/5k-7=0
We multiply all the terms by the denominator
-7*5k+2=0
Wy multiply elements
-35k+2=0
We move all terms containing k to the left, all other terms to the right
-35k=-2
k=-2/-35
k=2/35
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