21cranfofa
21cranfofa
17-01-2017
Mathematics
contestada
X-(9x-10) + 11=12x+3(-2x + 1\3
Respuesta :
hap092002
hap092002
17-01-2017
x(-9x+10)+11=12x(-6x+1)
-10x+10+11=6x+1
-10x+21=6x+1
-16x+21=1
-16x=20
x=-1.25
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