4x+9=-4x-18

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Solution for 4x+9=-4x-18 equation: 



4x+9=-4x-18

We move all terms to the left:

4x+9-(-4x-18)=0

We get rid of parentheses

4x+4x+18+9=0

We add all the numbers together, and all the variables

8x+27=0

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

8x=-27

x=-27/8

x=-3+3/8

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