20+20-5k=-20-2k

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Solution for 20+20-5k=-20-2k equation: 



20+20-5k=-20-2k

We move all terms to the left:

20+20-5k-(-20-2k)=0

We add all the numbers together, and all the variables

-5k-(-2k-20)+20+20=0

We add all the numbers together, and all the variables

-5k-(-2k-20)+40=0

We get rid of parentheses

-5k+2k+20+40=0

We add all the numbers together, and all the variables

-3k+60=0

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

-3k=-60

k=-60/-3

k=+20

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