30x-40=50x

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Solution for 30x-40=50x equation: 



30x-40=50x

We move all terms to the left:

30x-40-(50x)=0

We add all the numbers together, and all the variables

-20x-40=0

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

-20x=40

x=40/-20

x=-2

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