9x+4=-9x-7

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



9x+4=-9x-7

We move all terms to the left:

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

We get rid of parentheses

9x+9x+7+4=0

We add all the numbers together, and all the variables

18x+11=0

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

18x=-11

x=-11/18

x=-11/18

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