ivannaariel01 ivannaariel01
  • 11-12-2021
  • Mathematics
contestada

Is (2,1) a solution to this system of equations??
8x+7y=11
x+y=3

a) Yes
b) No​

Respuesta :

moonlightg741
moonlightg741 moonlightg741
  • 14-12-2021

Answer:

No

Step-by-step explanation:

In the ordered pair (2,1), 2 is the x-value and 1 is the y-value.

In the first equation, replace x with 2 and y with 1.

8x+7y

= 11

8(2)+7(1)

≟ 11

16+7

≟ 11

23

≟ 11

No, 23≠11.

Plugging (2,1) into the first equation did not result in a true statement. So, (2,1) is not a solution to the system of equations.

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