80=1/3x+90

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Solution for 80=1/3x+90 equation: 



80=1/3x+90

We move all terms to the left:

80-(1/3x+90)=0



Domain of the equation: 3x+90)!=0

x∈R



We get rid of parentheses

-1/3x-90+80=0

We multiply all the terms by the denominator


-90*3x+80*3x-1=0

Wy multiply elements

-270x+240x-1=0

We add all the numbers together, and all the variables

-30x-1=0

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

-30x=1

x=1/-30

x=-1/30

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