3a-25=-2(a+5)

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Solution for 3a-25=-2(a+5) equation: 



3a-25=-2(a+5)

We move all terms to the left:

3a-25-(-2(a+5))=0



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

-2(a+5)

We multiply parentheses

-2a-10

Back to the equation:

-(-2a-10)



We get rid of parentheses

3a+2a+10-25=0

We add all the numbers together, and all the variables

5a-15=0

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

5a=15

a=15/5

a=3

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