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)=0

We add all the numbers together, and all the variables

-2x-4=0

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

-2x=4

x=4/-2

x=-2

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