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3 years ago

11

Solve the system by substitution. -2x + 7y = 15 бу = 3

1 answer:

Salsk061 [2.6K]3 years ago

6 0

Answer:

Step-by-step explanation:

-2x + 7(1/2) =15

-4x +7 =30

-4x =23

x=-23/4

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