30k+80=+120

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Solution for 30k+80=+120 equation: 



30k+80=+120

We move all terms to the left:

30k+80-(+120)=0

We add all the numbers together, and all the variables

30k+80-120=0

We add all the numbers together, and all the variables

30k-40=0

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

30k=40

k=40/30

k=1+1/3

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