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kumpel [21]
3 years ago
10

Pensé dos números. Si los sumo obtengo 20. Si al doble del primer número le sumo 35 obtengo el segundo. ¿ qué número pensé?

Mathematics
1 answer:
SpyIntel [72]3 years ago
4 0
For this case, the first thing we must do is define variables:
 x: first number
 y: second number
 We now write the system of equations:
 x + y = 20
 y = 2x + 35
 Solving the system we have:
 x = -5
 y = 25
 Answer:
 
The numbers are:
 
x = -5
 
y = 25
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