Respuesta:
6r-5t= -11
r= -11+5t/6
7t-8.(-11+5t/6)=15
88-40t/6= 15-7t
88-40t= 6(15-7t)
88-40t= 90-42t
42t-40t= 90-88
2t= 2
t= 2/2
t= 1
r= -11+5.1/6
r= -6/6
r= -1
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Respuesta:
6r-5t= -11
r= -11+5t/6
7t-8.(-11+5t/6)=15
88-40t/6= 15-7t
88-40t= 6(15-7t)
88-40t= 90-42t
42t-40t= 90-88
2t= 2
t= 2/2
t= 1
r= -11+5.1/6
r= -6/6
r= -1