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-3k-9=8k-20
We simplify the equation to the form, which is simple to understand
-3k-9=8k-20
We move all terms containing k to the left and all other terms to the right.
-3k-8k=-20+9
We simplify left and right side of the equation.
-11k=-11
We divide both sides of the equation by -11 to get k.
k=1
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