7x-4=9x-4x

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



7x-4=9x-4x

We move all terms to the left:

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

We add all the numbers together, and all the variables

7x-(+5x)-4=0

We get rid of parentheses

7x-5x-4=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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