-25=-5(2a-1)

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Solution for -25=-5(2a-1) equation: 



-25=-5(2a-1)

We move all terms to the left:

-25-(-5(2a-1))=0



We calculate terms in parentheses: -(-5(2a-1)), so:

-5(2a-1)

We multiply parentheses

-10a+5

Back to the equation:

-(-10a+5)



We get rid of parentheses

10a-5-25=0

We add all the numbers together, and all the variables

10a-30=0

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

10a=30

a=30/10

a=3

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