-7k+4=-9k

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



-7k+4=-9k

We move all terms to the left:

-7k+4-(-9k)=0

We get rid of parentheses

-7k+9k+4=0

We add all the numbers together, and all the variables

2k+4=0

We move all terms containing k to the left, all other terms to the right

2k=-4

k=-4/2

k=-2

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