3(1+7k)=150

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Solution for 3(1+7k)=150 equation: 



3(1+7k)=150

We move all terms to the left:

3(1+7k)-(150)=0

We add all the numbers together, and all the variables

3(7k+1)-150=0

We multiply parentheses

21k+3-150=0

We add all the numbers together, and all the variables

21k-147=0

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

21k=147

k=147/21

k=7

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