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11. Which of the following pairs satisfy 2x+y > 5 and 3x - PS2? A (10) 8. (10.-1) C.(-4,6) D.(-2,-8)

Answer: B po​


Sagot :

Answer:

11.B

True po

Step-by-step explanation:

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Answer:

2x + y = 5

3x - y = 10

By solving this equation by eliminating method +y and -y would get canceled, leaving -

2x + 3x = 5 + 10

5x = 15

x = 3

By putting value of x in equation 1,

2x + y = 5

2 × 5 + y = 5

y = -10 + 5

y = -5