jr1026
jr1026
05-10-2021
Mathematics
contestada
-3|x+4|+16=7
two solutions
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victoriawhyy
victoriawhyy
05-10-2021
-3|x+4|+16=7
-3|x+4|=7-16
-3|x+4|=-9
|x+4|=3
x+4=3
x+4=-3
x=-1
x=-7
X1=-7 X2=-1
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