9x-20=-4x-15

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Solution for 9x-20=-4x-15 equation: 



9x-20=-4x-15

We move all terms to the left:

9x-20-(-4x-15)=0

We get rid of parentheses

9x+4x+15-20=0

We add all the numbers together, and all the variables

13x-5=0

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

13x=5

x=5/13

x=5/13

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