(20+-1y)+y=20

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Solution for (20+-1y)+y=20 equation: 



(20+-1y)+y=20

We move all terms to the left:

(20+-1y)+y-(20)=0

We add all the numbers together, and all the variables

(-1y)+y-20=0

We add all the numbers together, and all the variables

y+(-1y)-20=0

We get rid of parentheses

y-1y-20=0

We add all the numbers together, and all the variables

-20!=0

There is no solution for this equation

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