7x-7=9-13x

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Solution for 7x-7=9-13x equation: 



7x-7=9-13x

We move all terms to the left:

7x-7-(9-13x)=0

We add all the numbers together, and all the variables

7x-(-13x+9)-7=0

We get rid of parentheses

7x+13x-9-7=0

We add all the numbers together, and all the variables

20x-16=0

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

20x=16

x=16/20

x=4/5

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