84=2k-5(2k-4)

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Solution for 84=2k-5(2k-4) equation:


84=2k-5(2k-4)

We simplify the equation to the form, which is simple to understand 
84=2k-5(2k-4)

Reorder the terms in parentheses
84=2k+(-10k+20)

Remove unnecessary parentheses
+84=+2k-10k+20

We move all terms containing k to the left and all other terms to the right. 
-2k+10k=+20-84

We simplify left and right side of the equation. 
+8k=-64

We divide both sides of the equation by 8 to get k. 
k=-8

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