3x+4x=9x+5x-7x

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Solution for 3x+4x=9x+5x-7x equation: 



3x+4x=9x+5x-7x

We move all terms to the left:

3x+4x-(9x+5x-7x)=0

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

7x-(+7x)=0

We get rid of parentheses

7x-7x=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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