-(a+5)=25

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



-(a+5)=25

We move all terms to the left:

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

We get rid of parentheses

-a-5-25=0

We add all the numbers together, and all the variables

-1a-30=0

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

-a=30

a=30/-1

a=-30

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