19-4=17-a

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Solution for 19-4=17-a equation: 



19-4=17-a

We move all terms to the left:

19-4-(17-a)=0

We add all the numbers together, and all the variables

-(-1a+17)+19-4=0

We add all the numbers together, and all the variables

-(-1a+17)+15=0

We get rid of parentheses

1a-17+15=0

We add all the numbers together, and all the variables

a-2=0

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

a=2

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