3x+9=-3x-39

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Solution for 3x+9=-3x-39 equation: 



3x+9=-3x-39

We move all terms to the left:

3x+9-(-3x-39)=0

We get rid of parentheses

3x+3x+39+9=0

We add all the numbers together, and all the variables

6x+48=0

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

6x=-48

x=-48/6

x=-8

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