30-1x-1x=20

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Solution for 30-1x-1x=20 equation: 



30-1x-1x=20

We move all terms to the left:

30-1x-1x-(20)=0

We add all the numbers together, and all the variables

-2x+10=0

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

-2x=-10

x=-10/-2

x=+5

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