Respuesta :

cutelion918
add 29 to both sides

so now it should be

x=-x+9

add x to both sides

so now it should be
2x=20

now divdie
20/2= 10
so x=10

Let's check our answer
10-29= -10-9
-19=-19
check :)

so 10 is the answer

I hope this helps!

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