20l+30=30l

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Solution for 20l+30=30l equation: 



20l+30=30l

We move all terms to the left:

20l+30-(30l)=0

We add all the numbers together, and all the variables

-10l+30=0

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

-10l=-30

l=-30/-10

l=+3

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