Mathematics, 16.02.2022 22:20, linnialmira
Which TWO systems of linear equations are solved correctly?
A) If x + y = 3 and 2x + y = 12, then x = 9 and y = −6.
B) If 5x + y = 10 and x + 2y = 8, then x = 10 3 and y = 4 3 .
C) If x + y = 7 and 6x + y = 2, then x = 3 2 and y = 11 2 .
D) If 2x + 2y = 4 and x − 4y = 12, then x = 4 and y = −2.
E) If 2x − 4y = 4 and x − 6y = 10, then x = 2 and y = 2.
Answers: 3
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Which TWO systems of linear equations are solved correctly?
A) If x + y = 3 and 2x + y = 12, then...
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