aiirrx
aiirrx
21-08-2017
Mathematics
contestada
[HELP PLEASE ALGEBRA]
Would the answer only be B?
Respuesta :
caylus
caylus
21-08-2017
Hello,
|x+4|=3x-5
if x+4>=0 then
|x+4|=x+4
x+4=3x-5
2x=9
x=9/2
else
x+4<0 : x<-4
|x+4|=-(x+4)
-(x+4)=3x-5
-x-4=3x-5
4x=1
x=1/4 : to exclude since x<-4
end if
Only one solution : x=9/2
ANSWER B.
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