9x+4x=-15

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Solution for 9x+4x=-15 equation: 



9x+4x=-15

We move all terms to the left:

9x+4x-(-15)=0

We add all the numbers together, and all the variables

13x+15=0

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

13x=-15

x=-15/13

x=-1+2/13

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