3k+8-k=0

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Solution for 3k+8-k=0 equation: 


Simplifying
3k + 8 + -1k = 0

Reorder the terms:
8 + 3k + -1k = 0

Combine like terms: 3k + -1k = 2k
8 + 2k = 0

Solving
8 + 2k = 0

Solving for variable 'k'.

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

Add '-8' to each side of the equation.
8 + -8 + 2k = 0 + -8

Combine like terms: 8 + -8 = 0
0 + 2k = 0 + -8
2k = 0 + -8

Combine like terms: 0 + -8 = -8
2k = -8

Divide each side by '2'.
k = -4

Simplifying
k = -4

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