(x+21)+(2x+9)=90x=

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Solution for (x+21)+(2x+9)=90x= equation: 



(x+21)+(2x+9)=90x=

We move all terms to the left:

(x+21)+(2x+9)-(90x)=0

We add all the numbers together, and all the variables

-90x+(x+21)+(2x+9)=0

We get rid of parentheses

-90x+x+2x+21+9=0

We add all the numbers together, and all the variables

-87x+30=0

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

-87x=-30

x=-30/-87

x=10/29

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