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10-06-2021
Mathematics

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How many orders pair solutions does the system of equations have? -4+3y=12 x+y=2

How many orders pair solutions does the system of equations have 43y12 xy2 class=

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Аноним Аноним

10-06-2021

Answer:

B. 1

[tex] - 4x + 3y = 12 - - - (a) \\ x + y = 2 - - - (b) \\ (a) - 3 \times (b) : \\ - 7x + 0y = 6 \\ { \boxed{x = - \frac{6}{7} }} \\ - \frac{6}{7} + y = 2 \\ { \boxed{y = \frac{20}{7} }}[/tex]

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