5/3x+1/3x=21/3=7/3x

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Solution for 5/3x+1/3x=21/3=7/3x equation: 



5/3x+1/3x=21/3=7/3x

We move all terms to the left:

5/3x+1/3x-(21/3)=0



Domain of the equation: 3x!=0

x!=0/3

x!=0

x∈R



We add all the numbers together, and all the variables

5/3x+1/3x-7=0

We multiply all the terms by the denominator


-7*3x+5+1=0

We add all the numbers together, and all the variables

-7*3x+6=0

Wy multiply elements

-21x+6=0

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

-21x=-6

x=-6/-21

x=2/7

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