-20a-(-17a)-18a+(-3)=18

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Solution for -20a-(-17a)-18a+(-3)=18 equation: 



-20a-(-17a)-18a+(-3)=18

We move all terms to the left:

-20a-(-17a)-18a+(-3)-(18)=0

determiningTheFunctionDomain
-20a-(-17a)-18a-18+(-3)=0

We add all the numbers together, and all the variables

-38a-(-17a)-21=0

We get rid of parentheses

-38a+17a-21=0

We add all the numbers together, and all the variables

-21a-21=0

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

-21a=21

a=21/-21

a=-1

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