(9x-4)+(12x-55)=90

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Solution for (9x-4)+(12x-55)=90 equation: 



(9x-4)+(12x-55)=90

We move all terms to the left:

(9x-4)+(12x-55)-(90)=0

We get rid of parentheses

9x+12x-4-55-90=0

We add all the numbers together, and all the variables

21x-149=0

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

21x=149

x=149/21

x=7+2/21

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