39k-21k-6k-4k-7k=42

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Solution for 39k-21k-6k-4k-7k=42 equation: 


Simplifying
39k + -21k + -6k + -4k + -7k = 42

Combine like terms: 39k + -21k = 18k
18k + -6k + -4k + -7k = 42

Combine like terms: 18k + -6k = 12k
12k + -4k + -7k = 42

Combine like terms: 12k + -4k = 8k
8k + -7k = 42

Combine like terms: 8k + -7k = 1k
1k = 42

Solving
1k = 42

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Divide each side by '1'.
k = 42

Simplifying
k = 42

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