23x+390=-7x

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Solution for 23x+390=-7x equation: 



23x+390=-7x

We move all terms to the left:

23x+390-(-7x)=0

We get rid of parentheses

23x+7x+390=0

We add all the numbers together, and all the variables

30x+390=0

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

30x=-390

x=-390/30

x=-13

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