7-1/3x=21

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Solution for 7-1/3x=21 equation: 



7-1/3x=21

We move all terms to the left:

7-1/3x-(21)=0



Domain of the equation: 3x!=0

x!=0/3

x!=0

x∈R



We add all the numbers together, and all the variables

-1/3x-14=0

We multiply all the terms by the denominator


-14*3x-1=0

Wy multiply elements

-42x-1=0

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

-42x=1

x=1/-42

x=-1/42

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