-9k+3k=-21

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Solution for -9k+3k=-21 equation: 


Simplifying
-9k + 3k = -21

Combine like terms: -9k + 3k = -6k
-6k = -21

Solving
-6k = -21

Solving for variable 'k'.

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

Divide each side by '-6'.
k = 3.5

Simplifying
k = 3.5

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