-7k+15k+9k-4k=-13

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Solution for -7k+15k+9k-4k=-13 equation: 


Simplifying
-7k + 15k + 9k + -4k = -13

Combine like terms: -7k + 15k = 8k
8k + 9k + -4k = -13

Combine like terms: 8k + 9k = 17k
17k + -4k = -13

Combine like terms: 17k + -4k = 13k
13k = -13

Solving
13k = -13

Solving for variable 'k'.

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

Divide each side by '13'.
k = -1

Simplifying
k = -1

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