250=7k-5(-7k-8)

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Solution for 250=7k-5(-7k-8) equation:


250=7k-5(-7k-8)

We simplify the equation to the form, which is simple to understand 
250=7k-5(-7k-8)

Reorder the terms in parentheses
250=7k+(+35k+40)

Remove unnecessary parentheses
+250=+7k+35k+40

We move all terms containing k to the left and all other terms to the right. 
-7k-35k=+40-250

We simplify left and right side of the equation. 
-42k=-210

We divide both sides of the equation by -42 to get k. 
k=5

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