7k-7(1-5k)=40-5k

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Solution for 7k-7(1-5k)=40-5k equation: 



7k-7(1-5k)=40-5k

We move all terms to the left:

7k-7(1-5k)-(40-5k)=0

We add all the numbers together, and all the variables

7k-7(-5k+1)-(-5k+40)=0

We multiply parentheses

7k+35k-(-5k+40)-7=0

We get rid of parentheses

7k+35k+5k-40-7=0

We add all the numbers together, and all the variables

47k-47=0

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

47k=47

k=47/47

k=1

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