7x+4+5x=-4+13x+9

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Solution for 7x+4+5x=-4+13x+9 equation: 



7x+4+5x=-4+13x+9

We move all terms to the left:

7x+4+5x-(-4+13x+9)=0

We add all the numbers together, and all the variables

7x+5x-(13x+5)+4=0

We add all the numbers together, and all the variables

12x-(13x+5)+4=0

We get rid of parentheses

12x-13x-5+4=0

We add all the numbers together, and all the variables

-1x-1=0

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

-x=1

x=1/-1

x=-1

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