(5x+9)=(7x-9)=189

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Solution for (5x+9)=(7x-9)=189 equation: 



(5x+9)=(7x-9)=189

We move all terms to the left:

(5x+9)-((7x-9))=0

We get rid of parentheses

5x-((7x-9))+9=0



We calculate terms in parentheses: -((7x-9)), so:

(7x-9)

We get rid of parentheses

7x-9

Back to the equation:

-(7x-9)



We get rid of parentheses

5x-7x+9+9=0

We add all the numbers together, and all the variables

-2x+18=0

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

-2x=-18

x=-18/-2

x=+9

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