25=21+x/9

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Solution for 25=21+x/9 equation: 



25=21+x/9

We move all terms to the left:

25-(21+x/9)=0

We add all the numbers together, and all the variables

-(x/9+21)+25=0

We get rid of parentheses

-x/9-21+25=0

We multiply all the terms by the denominator


-x-21*9+25*9=0

We add all the numbers together, and all the variables

-1x+36=0

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

-x=-36

x=-36/-1

x=+36

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