(X+9)+(x-4)=0

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Solution for (X+9)+(x-4)=0 equation: 



(X+9)+(X-4)=0

We get rid of parentheses

X+X+9-4=0

We add all the numbers together, and all the variables

2X+5=0

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

2X=-5

X=-5/2

X=-2+1/2

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