13k+80=12k+120

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Solution for 13k+80=12k+120 equation: 



13k+80=12k+120

We move all terms to the left:

13k+80-(12k+120)=0

We get rid of parentheses

13k-12k-120+80=0

We add all the numbers together, and all the variables

k-40=0

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

k=40

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