20-(3x+6)=-25

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Solution for 20-(3x+6)=-25 equation: 



20-(3x+6)=-25

We move all terms to the left:

20-(3x+6)-(-25)=0

We add all the numbers together, and all the variables

-(3x+6)+45=0

We get rid of parentheses

-3x-6+45=0

We add all the numbers together, and all the variables

-3x+39=0

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

-3x=-39

x=-39/-3

x=+13

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