80-3k=5k+8k

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Solution for 80-3k=5k+8k equation: 



80-3k=5k+8k

We move all terms to the left:

80-3k-(5k+8k)=0

We add all the numbers together, and all the variables

-3k-(+13k)+80=0

We get rid of parentheses

-3k-13k+80=0

We add all the numbers together, and all the variables

-16k+80=0

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

-16k=-80

k=-80/-16

k=+5

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