7k-(5k-4)=20

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Solution for 7k-(5k-4)=20 equation: 



7k-(5k-4)=20

We move all terms to the left:

7k-(5k-4)-(20)=0

We get rid of parentheses

7k-5k+4-20=0

We add all the numbers together, and all the variables

2k-16=0

We move all terms containing k to the left, all other terms to the right

2k=16

k=16/2

k=8

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