1=-a+43

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Solution for 1=-a+43 equation: 



1=-a+43

We move all terms to the left:

1-(-a+43)=0

We add all the numbers together, and all the variables

-(-1a+43)+1=0

We get rid of parentheses

1a-43+1=0

We add all the numbers together, and all the variables

a-42=0

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

a=42

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