febreeze
febreeze
11-09-2017
Mathematics
contestada
Can someone help me please
Respuesta :
dpokharnaotzjgn
dpokharnaotzjgn
11-09-2017
a) 4(25-3y)+5y=9
100-7y=9
91=7y
y=13
(-14,13)
b) 14-x=x-10
2x=24
x=12
(12,14)
c) 4x=12
(3,7)
d)
18.5x+10.4y=200
x+y=130
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