7x+3x=9x+4

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Solution for 7x+3x=9x+4 equation: 



7x+3x=9x+4

We move all terms to the left:

7x+3x-(9x+4)=0

We add all the numbers together, and all the variables

10x-(9x+4)=0

We get rid of parentheses

10x-9x-4=0

We add all the numbers together, and all the variables

x-4=0

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

x=4

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