a-(a-10)=30

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Solution for a-(a-10)=30 equation: 



a-(a-10)=30

We move all terms to the left:

a-(a-10)-(30)=0

We get rid of parentheses

a-a+10-30=0

We add all the numbers together, and all the variables

-20!=0

There is no solution for this equation

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