-30=a+(-19)

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Solution for -30=a+(-19) equation: 



-30=a+(-19)

We move all terms to the left:

-30-(a+(-19))=0



We calculate terms in parentheses: -(a+(-19)), so:

a+(-19)

We add all the numbers together, and all the variables

a-19

Back to the equation:

-(a-19)



We get rid of parentheses

-a+19-30=0

We add all the numbers together, and all the variables

-1a-11=0

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

-a=11

a=11/-1

a=-11

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