25-4a=5a-2(a-2)

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Solution for 25-4a=5a-2(a-2) equation: 



25-4a=5a-2(a-2)

We move all terms to the left:

25-4a-(5a-2(a-2))=0



We calculate terms in parentheses: -(5a-2(a-2)), so:

5a-2(a-2)

We multiply parentheses

5a-2a+4

We add all the numbers together, and all the variables

3a+4

Back to the equation:

-(3a+4)



We get rid of parentheses

-4a-3a-4+25=0

We add all the numbers together, and all the variables

-7a+21=0

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

-7a=-21

a=-21/-7

a=+3

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