7k=40+2k

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Solution for 7k=40+2k equation: 



7k=40+2k

We move all terms to the left:

7k-(40+2k)=0

We add all the numbers together, and all the variables

7k-(2k+40)=0

We get rid of parentheses

7k-2k-40=0

We add all the numbers together, and all the variables

5k-40=0

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

5k=40

k=40/5

k=8

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