k-k+2k-k+3k=20

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Solution for k-k+2k-k+3k=20 equation: 


Simplifying
k + -1k + 2k + -1k + 3k = 20

Combine like terms: k + -1k = 0
0 + 2k + -1k + 3k = 20
2k + -1k + 3k = 20

Combine like terms: 2k + -1k = 1k
1k + 3k = 20

Combine like terms: 1k + 3k = 4k
4k = 20

Solving
4k = 20

Solving for variable 'k'.

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

Divide each side by '4'.
k = 5

Simplifying
k = 5

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