30=4x-20

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Solution for 30=4x-20 equation: 



30=4x-20

We move all terms to the left:

30-(4x-20)=0

We get rid of parentheses

-4x+20+30=0

We add all the numbers together, and all the variables

-4x+50=0

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

-4x=-50

x=-50/-4

x=12+1/2

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