X-3y=21/10

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Solution for X-3y=21/10 equation: 



X-3X=21/10

We move all terms to the left:

X-3X-(21/10)=0

We add all the numbers together, and all the variables

X-3X-(+21/10)=0

We add all the numbers together, and all the variables

-2X-(+21/10)=0

We get rid of parentheses

-2X-21/10=0

We multiply all the terms by the denominator


-2X*10-21=0

Wy multiply elements

-20X-21=0

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

-20X=21

X=21/-20

X=-1+1/20

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