7x-4=9x-4

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Solution for 7x-4=9x-4 equation: 



7x-4=9x-4

We move all terms to the left:

7x-4-(9x-4)=0

We get rid of parentheses

7x-9x+4-4=0

We add all the numbers together, and all the variables

-2x=0

x=0/-2

x=0

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