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k-4+7k=4(k+2)
We simplify the equation to the form, which is simple to understand
k-4+7k=4(k+2)
Reorder the terms in parentheses
k-4+7k=+(+4k+8)
Remove unnecessary parentheses
+k-4+7k=+4k+8
We move all terms containing k to the left and all other terms to the right.
+1k+7k-4k=+8+4
We simplify left and right side of the equation.
+4k=+12
We divide both sides of the equation by 4 to get k.
k=3
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