5(-1+7k)=100

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Solution for 5(-1+7k)=100 equation: 



5(-1+7k)=100

We move all terms to the left:

5(-1+7k)-(100)=0

We add all the numbers together, and all the variables

5(7k-1)-100=0

We multiply parentheses

35k-5-100=0

We add all the numbers together, and all the variables

35k-105=0

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

35k=105

k=105/35

k=3

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