taylorcecileee
taylorcecileee
13-11-2020
Mathematics
contestada
7x + 6y = 10
x+y = 9
Respuesta :
shre2007
shre2007
13-11-2020
Step-by-step explanation:
7x + 6y = 10
=>7x+y=10-6
=>x+y=4-7
=>x+y= -3
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