(11x+21)=90

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Solution for (11x+21)=90 equation: 



(11x+21)=90

We move all terms to the left:

(11x+21)-(90)=0

We get rid of parentheses

11x+21-90=0

We add all the numbers together, and all the variables

11x-69=0

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

11x=69

x=69/11

x=6+3/11

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