54=a-(-18)

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Solution for 54=a-(-18) equation: 



54=a-(-18)

We move all terms to the left:

54-(a-(-18))=0



We calculate terms in parentheses: -(a-(-18)), so:

a-(-18)

We add all the numbers together, and all the variables

a+18

Back to the equation:

-(a+18)



We get rid of parentheses

-a-18+54=0

We add all the numbers together, and all the variables

-1a+36=0

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

-a=-36

a=-36/-1

a=+36

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