1/7x+9=12

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Solution for 1/7x+9=12 equation: 



1/7x+9=12

We move all terms to the left:

1/7x+9-(12)=0



Domain of the equation: 7x!=0

x!=0/7

x!=0

x∈R



We add all the numbers together, and all the variables

1/7x-3=0

We multiply all the terms by the denominator


-3*7x+1=0

Wy multiply elements

-21x+1=0

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

-21x=-1

x=-1/-21

x=1/21

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