7x-9=7-9x

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



7x-9=7-9x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

7x+9x-7-9=0

We add all the numbers together, and all the variables

16x-16=0

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

16x=16

x=16/16

x=1

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