4x+1=-9x

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Solution for 4x+1=-9x equation: 



4x+1=-9x

We move all terms to the left:

4x+1-(-9x)=0

We get rid of parentheses

4x+9x+1=0

We add all the numbers together, and all the variables

13x+1=0

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

13x=-1

x=-1/13

x=-1/13

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