(7x+18)+(11x-9)=90

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Solution for (7x+18)+(11x-9)=90 equation: 



(7x+18)+(11x-9)=90

We move all terms to the left:

(7x+18)+(11x-9)-(90)=0

We get rid of parentheses

7x+11x+18-9-90=0

We add all the numbers together, and all the variables

18x-81=0

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

18x=81

x=81/18

x=4+1/2

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