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Travka [436]
2 years ago
5

Help me please!!

Mathematics
1 answer:
Paha777 [63]2 years ago
7 0

Answer:

y = -4.174    (aprox)

x = 9.435    (aprox)

Step-by-step explanation:

-2x - 5y = 2        Eq. 1

x = -47 + 9y        Eq. 2

substituying the  Eq. 2 in the Eq. 1:

-2(-47+9y)  - 5y = 2

(-2*-47 -2*9y) - 5y = 2

-94 -18y - 5y = 2

-23y = 2 + 94

-23y = 96

y = 96/-23

y = -4.174      (aprox)

from the Eq. 2

x = -47 + 9y

x = 47 + 9*-4.174

x = 47 - 37.565

x = 9.435      (aprox)

Check:

from the Eq. 1

-2x - 5y = 2

-2*9.345 -5*-4.174 = 2

-18.87 + 20.87 = 2

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