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30+2k+5k=11
We simplify the equation to the form, which is simple to understand
30+2k+5k=11
We move all terms containing k to the left and all other terms to the right.
+2k+5k=+11-30
We simplify left and right side of the equation.
+7k=-19
We divide both sides of the equation by 7 to get k.
k=-2.71428571429
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