4+2(5-7k)=42

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Solution for 4+2(5-7k)=42 equation: 



4+2(5-7k)=42

We move all terms to the left:

4+2(5-7k)-(42)=0

We add all the numbers together, and all the variables

2(-7k+5)+4-42=0

We add all the numbers together, and all the variables

2(-7k+5)-38=0

We multiply parentheses

-14k+10-38=0

We add all the numbers together, and all the variables

-14k-28=0

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

-14k=28

k=28/-14

k=-2

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