13k-12k-k+2k-k=7

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Solution for 13k-12k-k+2k-k=7 equation: 


Simplifying
13k + -12k + -1k + 2k + -1k = 7

Combine like terms: 13k + -12k = 1k
1k + -1k + 2k + -1k = 7

Combine like terms: 1k + -1k = 0
0 + 2k + -1k = 7
2k + -1k = 7

Combine like terms: 2k + -1k = 1k
1k = 7

Solving
1k = 7

Solving for variable 'k'.

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

Divide each side by '1'.
k = 7

Simplifying
k = 7

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