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18-02-2021
Mathematics

contestada

Is the ordered pair (2.1) a solution to the system below?
21x + 5y = 7
4x – 3y = 5
yes or no

Respuesta :

jemuelgarcia88 jemuelgarcia88

18-02-2021

Answer:

The first solution is wrong, the second one is correct.

Step-by-step explanation:

21x+5y=21(2)+5(1)= 42+5= 47 then,

4x-3y=4(2)-3(1) = 8-3= 5.

2 is for x, then 1 is for y.

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