5x+15=-4x-16

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Solution for 5x+15=-4x-16 equation: 



5x+15=-4x-16

We move all terms to the left:

5x+15-(-4x-16)=0

We get rid of parentheses

5x+4x+16+15=0

We add all the numbers together, and all the variables

9x+31=0

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

9x=-31

x=-31/9

x=-3+4/9

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