5k=8k+21

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Solution for 5k=8k+21 equation: 


Simplifying
5k = 8k + 21

Reorder the terms:
5k = 21 + 8k

Solving
5k = 21 + 8k

Solving for variable 'k'.

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

Add '-8k' to each side of the equation.
5k + -8k = 21 + 8k + -8k

Combine like terms: 5k + -8k = -3k
-3k = 21 + 8k + -8k

Combine like terms: 8k + -8k = 0
-3k = 21 + 0
-3k = 21

Divide each side by '-3'.
k = -7

Simplifying
k = -7

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