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natulia [17]
3 years ago
8

-2x + y=9 -4x - y=9 What is the answer

Mathematics
2 answers:
Fed [463]3 years ago
7 0

Answer:

-6x = 18

x = -3

-2(-3) + y = 9

6 + y = 9

y = 3

(-3, 3)

Step-by-step explanation:

Dmitry_Shevchenko [17]3 years ago
3 0

-2x + y = 9

-4x - y = 9

----------------- +

-6x = 18

x = -3

-2x + y = 9

-2(-3) + y = 9

6 + y = 9

y = 3

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