4k+20=7k-15-8k

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Solution for 4k+20=7k-15-8k equation: 



4k+20=7k-15-8k

We move all terms to the left:

4k+20-(7k-15-8k)=0

We add all the numbers together, and all the variables

4k-(-1k-15)+20=0

We get rid of parentheses

4k+1k+15+20=0

We add all the numbers together, and all the variables

5k+35=0

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

5k=-35

k=-35/5

k=-7

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