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-21/1=k/8
We simplify the equation to the form, which is simple to understand
-21/1=k/8
We move all terms containing k to the left and all other terms to the right.
-0.125k=+21
We simplify left and right side of the equation.
-0.125k=+21
We divide both sides of the equation by -00.125 to get k.
k=-168
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