25KaurR
25KaurR
11-11-2020
Mathematics
contestada
-63=-5(1+4r)-3(7r-8)
Respuesta :
noahaceja
noahaceja
11-11-2020
Answer:
-63=-5(1+4r)-3(7r-8)
-63=-5-20r-21r+24
-63=19-41r
41r=19+63
41r=82
41r/41=82/41
r=2
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