30x+50=40x+20

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Solution for 30x+50=40x+20 equation: 



30x+50=40x+20

We move all terms to the left:

30x+50-(40x+20)=0

We get rid of parentheses

30x-40x-20+50=0

We add all the numbers together, and all the variables

-10x+30=0

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

-10x=-30

x=-30/-10

x=+3

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