5x+6x-18=90-7x

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Solution for 5x+6x-18=90-7x equation: 



5x+6x-18=90-7x

We move all terms to the left:

5x+6x-18-(90-7x)=0

We add all the numbers together, and all the variables

5x+6x-(-7x+90)-18=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

11x+7x-90-18=0

We add all the numbers together, and all the variables

18x-108=0

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

18x=108

x=108/18

x=6

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