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k/.21=.6
We simplify the equation to the form, which is simple to understand
k/.21=.6
We move all terms containing k to the left and all other terms to the right.
+4.7619047619048k=0.6
We simplify left and right side of the equation.
+4.7619047619048k=0.6
We divide both sides of the equation by 4.7619047619048 to get k.
k=0.126
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