21k=72k

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Solution for 21k=72k equation: 


Simplifying
21k = 72k

Solving
21k = 72k

Solving for variable 'k'.

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

Add '-72k' to each side of the equation.
21k + -72k = 72k + -72k

Combine like terms: 21k + -72k = -51k
-51k = 72k + -72k

Combine like terms: 72k + -72k = 0
-51k = 0

Divide each side by '-51'.
k = 0

Simplifying
k = 0

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