30=20-1/2x

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Solution for 30=20-1/2x equation: 



30=20-1/2x

We move all terms to the left:

30-(20-1/2x)=0



Domain of the equation: 2x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-(-1/2x+20)+30=0

We get rid of parentheses

1/2x-20+30=0

We multiply all the terms by the denominator


-20*2x+30*2x+1=0

Wy multiply elements

-40x+60x+1=0

We add all the numbers together, and all the variables

20x+1=0

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

20x=-1

x=-1/20

x=-1/20

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