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6.5/42.25=k
We move all terms to the left:
6.5/42.25-(k)=0
We add all the numbers together, and all the variables
-1k+6.5/42.25=0
We multiply all the terms by the denominator
-1k*42.25+6.5=0
Wy multiply elements
-42.25k+6.5=0
We move all terms containing k to the left, all other terms to the right
-42.25k=-6.5
k=-6.5/-42.25
k=1/6.5
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