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15k+k=7-12k
We simplify the equation to the form, which is simple to understand
15k+k=7-12k
We move all terms containing k to the left and all other terms to the right.
+15k+1k+12k=+7
We simplify left and right side of the equation.
+28k=+7
We divide both sides of the equation by 28 to get k.
k=0.25
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