30=7x+20

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Solution for 30=7x+20 equation: 



30=7x+20

We move all terms to the left:

30-(7x+20)=0

We get rid of parentheses

-7x-20+30=0

We add all the numbers together, and all the variables

-7x+10=0

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

-7x=-10

x=-10/-7

x=1+3/7

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