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15-01-2022
Mathematics

contestada

Solve the system by substitution. -x+y=30 x=7y

Respuesta :

15-01-2022

Answer:

x = -35

y = -5

Step-by-step explanation:

x = 7y

-x + y = 30

y - x = 30

y - (7y) = 30

-6y = 30

y = -5

x = 7(-5)

x = -35

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