(3a+7)=(7a-5)

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Solution for (3a+7)=(7a-5) equation: 



(3a+7)=(7a-5)

We move all terms to the left:

(3a+7)-((7a-5))=0

We get rid of parentheses

3a-((7a-5))+7=0



We calculate terms in parentheses: -((7a-5)), so:

(7a-5)

We get rid of parentheses

7a-5

Back to the equation:

-(7a-5)



We get rid of parentheses

3a-7a+5+7=0

We add all the numbers together, and all the variables

-4a+12=0

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

-4a=-12

a=-12/-4

a=+3

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