(7x+21)=(9x-5)

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Solution for (7x+21)=(9x-5) equation: 



(7x+21)=(9x-5)

We move all terms to the left:

(7x+21)-((9x-5))=0

We get rid of parentheses

7x-((9x-5))+21=0



We calculate terms in parentheses: -((9x-5)), so:

(9x-5)

We get rid of parentheses

9x-5

Back to the equation:

-(9x-5)



We get rid of parentheses

7x-9x+5+21=0

We add all the numbers together, and all the variables

-2x+26=0

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

-2x=-26

x=-26/-2

x=+13

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