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9/8k=315
We move all terms to the left:
9/8k-(315)=0
Domain of the equation: 8k!=0We multiply all the terms by the denominator
k!=0/8
k!=0
k∈R
-315*8k+9=0
Wy multiply elements
-2520k+9=0
We move all terms containing k to the left, all other terms to the right
-2520k=-9
k=-9/-2520
k=1/280
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