140=20-1/2x

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Solution for 140=20-1/2x equation: 



140=20-1/2x

We move all terms to the left:

140-(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)+140=0

We get rid of parentheses

1/2x-20+140=0

We multiply all the terms by the denominator


-20*2x+140*2x+1=0

Wy multiply elements

-40x+280x+1=0

We add all the numbers together, and all the variables

240x+1=0

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

240x=-1

x=-1/240

x=-1/240

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