2k-k=21

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Solution for 2k-k=21 equation: 


Simplifying
2k + -1k = 21

Combine like terms: 2k + -1k = 1k
1k = 21

Solving
1k = 21

Solving for variable 'k'.

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

Divide each side by '1'.
k = 21

Simplifying
k = 21

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