450+13x=390-7x

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Solution for 450+13x=390-7x equation: 



450+13x=390-7x

We move all terms to the left:

450+13x-(390-7x)=0

We add all the numbers together, and all the variables

13x-(-7x+390)+450=0

We get rid of parentheses

13x+7x-390+450=0

We add all the numbers together, and all the variables

20x+60=0

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

20x=-60

x=-60/20

x=-3

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